파트넘버.co.kr SX28AC 데이터시트 PDF


SX28AC 반도체 회로 부품 판매점

(SX20AC / SX28AC) Configurable Communications Controllers



Ubicom 로고
Ubicom
SX28AC 데이터시트, 핀배열, 회로
March, 2002
SX20AC/SX28AC
Configurable Communications Controllers with EE/Flash Program
Memory, In-System Programming Capability and On-Chip Debug
1.0 PRODUCT OVERVIEW
1.1 Introduction
www.DataShTehete4UU.cbomicom SX family of configurable communications
controllers are fabricated in an advanced CMOS process
technology. The advanced process, combined with a
RISC-based architecture, allows high-speed computa-
tion, flexible I/O control, and efficient data manipulation.
Throughput is enhanced by operating the device at fre-
quencies up to 75 MHz and by optimizing the instruction
set to include mostly single-cycle instructions. In addition,
the SX architecture is deterministic and totally reprogra-
mable. The unique combination of these characteristics
enables the device to implement hard real-time functions
as software modules (Virtual Peripheral™) to replace tra-
ditional hardware functions.
On-chip functions include a general-purpose 8-bit timer
with prescaler, an analog comparator, a brown-out detec-
tor, a watchdog timer, a power-save mode with multi-
source wakeup capability, an internal R/C oscillator, user-
selectable clock modes, and high-current outputs.
OSC1 OSC2
RTCC
OSC
Driver
4MHz
Clock
Select
8-bit Watchdog
Timer (WDT)
8-bit Timer
RTCC
Internal
RC OSC
÷ 4 or ÷ 1
System Clock
Power-On
Reset
Brown-Out
MCLR
Prescaler for RTCC
RESET
or
Prescaler for WDT
Interrupt
MIWU System
Clock
Internal Data Bus
Interrupt Stack
MIWU
8
3 Analog
Port B
Comp
88
8
8
Instruction
Pipeline
Fetch
Decode
Executive
Write Back
PC
3 Level
Stack
8
W
FSR
PC
STATUS
OPTION
8
8
8
Address
88
ALU
136 Bytes
SRAM
Address 12
In-System
Debugging
In-System
Programming
2k Words
EEPROM
88
Port A Port C
48
MODE
8 Write Data
8 Read Data
12 Instruction
IREAD
Figure 1-1. Block Diagram
Ubicom™ and the Ubicom logo are trademarks of Ubicom, Inc.
I2C™ is a trademark of Philips Corporation
© 2002 Ubicom, Inc. All rights reserved.
All other trademarks mentioned in this document are property of their respec-
tive companies.
- 1 - www.ubicom.com


SX28AC 데이터시트, 핀배열, 회로
SX20AC/SX28AC
Table of Contents
1.0 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.1 The Virtual Peripheral Concept . . . . . . . . 4
1.3.2 The Communications Controller . . . . . . . . 4
1.4 Programming and Debugging Support . . . . . . . . . . 4
1.5 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.0 Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Part Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0 Port Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Reading and Writing the Ports . . . . . . . . . . . . . . . . . 7
3.1.1 Read-Modify-Write Considerations . . . . . 9
3.2
www.DataSheet4U.com
Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2.1 MODE Register . . . . . . . . . . . . . . . . . . . . 9
3.2.2 Port Configuration Registers . . . . . . . . . . 9
3.2.3 Port Configuration Upon Reset . . . . . . . 10
4.0 Special-Function Registers . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 PC Register (02h) . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 STATUS Register (03h) . . . . . . . . . . . . . . . . . . . . . 11
4.3 OPTION Register . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.0 Device Configuration Registers . . . . . . . . . . . . . . . . . . . . . 13
5.1 FUSE Word (Read/Program at FFFh in main memory
map) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 FUSEX Word (Read/Program via Programming
Command) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.3 DEVICE Word (Hard-Wired Read-Only) . . . . . . . . 14
6.0 Memory Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1.1 Program Counter . . . . . . . . . . . . . . . . . . 15
6.1.2 Subroutine Stack . . . . . . . . . . . . . . . . . . 15
6.2 Data Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2.1 File Select Register (04h) . . . . . . . . . . . 15
7.0 Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Multi-Input Wakeup . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Port B MIWU/Interrupt Configuration . . . . . . . . . . . 18
8.0 Interrupt Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.0 Oscillator Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9.1 XT, LP or HS modes . . . . . . . . . . . . . . . . . . . . . . . 21
9.2 External RC Mode . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.3 Internal RC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.0 Real Time Clock (RTCC)/Watchdog Timer . . . . . . . . . . . . .23
10.1 RTCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
10.2 Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . .23
10.3 The Prescaler . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
11.0 Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
12.0 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
13.0 Brown-Out Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
14.0 Register States Upon DiffeRent reset operations . . . . . . .29
15.0 Instruction Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
15.1 Instruction Set Features . . . . . . . . . . . . . . . . . . . . .30
15.2 Instruction Execution . . . . . . . . . . . . . . . . . . . . . . .30
15.3 Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . .30
15.4 RAM Addressing . . . . . . . . . . . . . . . . . . . . . . . . . .31
15.5 The Bank Instruction . . . . . . . . . . . . . . . . . . . . . . .31
15.6 Bit Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . .31
15.7 Input/Output Operation . . . . . . . . . . . . . . . . . . . . . .31
15.8 Increment/Decrement . . . . . . . . . . . . . . . . . . . . . . .31
15.9 Loop Counting and Data Pointing Testing . . . . . . .31
15.10 Branch and Loop Call Instructions . . . . . . . . . . . . .31
15.10.1 Jump Operation . . . . . . . . . . . . . . . . . . .31
15.10.2 Page Jump Operation . . . . . . . . . . . . . .32
15.10.3 Call Operation . . . . . . . . . . . . . . . . . . . .32
15.10.4 Page Call Operation . . . . . . . . . . . . . . . .32
15.11 Return Instructions . . . . . . . . . . . . . . . . . . . . . . . . .32
15.12 Subroutine Operation . . . . . . . . . . . . . . . . . . . . . . .33
15.12.1 Push Operation . . . . . . . . . . . . . . . . . . .33
15.12.2 Pop Operation . . . . . . . . . . . . . . . . . . . .33
15.13 Comparison and Conditional Branch Instructions .34
15.14 Logical Instruction . . . . . . . . . . . . . . . . . . . . . . . . .34
15.15 Shift and Rotate Instructions . . . . . . . . . . . . . . . . .34
15.16 Complement and SWAP . . . . . . . . . . . . . . . . . . . .34
15.17 Key to Abbreviations and Symbols . . . . . . . . . . . . .34
16.0 Instruction Set Summary Table . . . . . . . . . . . . . . . . . . . . . .35
16.1 Equivalent Assembler Mnemonics . . . . . . . . . . . . .38
17.0 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .39
17.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . .39
17.2 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . .40
17.3 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . .41
17.4 Comparator DC and AC Specifications . . . . . . . . .41
17.5 Typical Performance Characteristics. . . . . . . . . . . .42
18.0 Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
© 2002 Ubicom, Inc. All rights reserved.
-2-
www.ubicom.com




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SX28AC controller

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