CTM8B54E/55E/56E/57E
EPROM-Based 8-Bit CMOS Microcontroller
3.0 FUNCTIONAL DESCRIPTIONS
3.1 REGISTER MAP
The register map of CTM8B5X is depicted as below:.
The Register Map of CTM8B55E
The Register Map of CTM8B54E/56E
Address
00h
Description
Address
00h
Description
Indirect Addressing Register
Indirect Addressing Register
01h
Timer0
01h
Timer0
02h
PC
02h
PC
03h
STATUS
03h
STATUS
04h
FSR
04h
FSR
05h
PORTA
05h
PORTA
06h
PORTB
06h
PORTB
07h
PORTC
07h-1Fh
General Purpose Register
08h-1Fh
General Purpose Register
The Register Map of CTM8B57E
Address
Description
Bank 0
Bank 1
01
Bank 2
10
Bank 3
11
FSR<6:5>
00
Indirect Address-
ing Register
00h
01h
02h
03h
04h
05h
06h
07h
Timer0
PC
STATUS
FSR
Map back to address in Bank 0
PORTA
PORTB
PORTC
General Purpose
Register
08h~0Fh
10h~1Fh
30h~3Fh
50h~5Fh
70h~7Fh
General Purpose General Purpose General Purpose General Purpose
Register
Register
Register
Register
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN, R.O.C
Tel:886-3-3529445
Fax:886-3-3521052
Email: server@ceramate.com.tw
Http: www.ceramate.com.tw
Rev 1.1 Dec 26,2001
Page 3 of 23
CERAMATE [ CERAMATE TECHNICAL ]
