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参数资料
| 型号： | ST62P35BQ6/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP52 |
| 封装： | PLASTIC, QFP-52 |
| 文件页数： | 2/82页 |
| 文件大小： | 617K |
| 代理商： | ST62P35BQ6/XXX |
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10/82
ST62T35B/E35B
MEMORY MAP (Cont’d)
1.3.3 Data Space
Data Space accommodates all the data necessary
for processing the user program. This space com-
prises the RAM resource, the processor core and
peripheral registers, as well as read-only data
such as constants and look-up tables in Program
memory.
1.3.3.1 Data ROM
All read-only data is physically stored in program
memory, which also accommodates the Program
Space. The program memory consequently con-
tains the program code to be executed, as well as
the constants and look-up tables required by the
application.
The Data Space locations in which the different
constants and look-up tables are addressed by
the processor core may be thought of as a 64-byte
window through which it is possible to access the
read-only data stored in Program memory.
1.3.3.2 Data RAM/EEPROM
In ST6235B and ST62E35B devices, the data
space includes 60 bytes of RAM, the accumulator
(A), the indirect registers (X), (Y), the short direct
registers (V), (W), the I/O port registers, the pe-
ripheral data and control registers, the interrupt
option register and the Data ROM Window regis-
ter (DRW register).
Additional RAM and EEPROM pages can also be
addressed using banks of 64 bytes located be-
tween addresses 00ST62T35B and ST62E35Bh
and 3Fh.
1.3.4 Stack Space
Stack space consists of six 12-bit registers which
are used to stack subroutine and interrupt return
addresses, as well as the current program counter
contents.
Table 3. Additional RAM/EEPROM Banks.
Table 4. ST62T35B Data Memory Space
Device
RAM
EEPROM
ST62T35B
2 x 64 bytes
DATA and EEPROM
000h
03Fh
DATA ROM WINDOW AREA
040h
07Fh
X REGISTER
080h
Y REGISTER
081h
V REGISTER
082h
W REGISTER
083h
DATA RAM
084h
0BFh
PORT A DATA REGISTER
0C0h
PORT B DATA REGISTER
0C1h
PORT C DATA REGIS TER
0C2h
PORT D DATA REGIS TER
0C3h
PORT A DIRECTION REGISTER
0C4h
PORT B DIRECTION REGISTER
0C5h
PORT C DIREC TION REGISTER
0C6h
PORT D DIREC TION REGISTER
0C7h
INTERRUPT OPTION REGISTER
0C8h*
DATA ROM WINDOW REGIS TER
0C9h*
ROM BANK SELECT REGISTER
0CAh*
RAM/EEPROM BANK SELECT REGISTER
0CBh*
PORT A OPTION REGISTER
0CCh
PORT B OPTION REGISTER
0CDh
PORT C OPTION REGISTER
0CEh
PORT D OPTION REGISTER
0CFh
A/D DATA REGISTER
0D0h
A/D CONTROL REGIS TER
0D1h
TIMER 1 PRESC ALER REGISTER
0D2h
TIMER 1 COUNTER REGIS TER
0D3h
TIMER 1 STATUS/CONTROL REGISTER
0D4h
RESERVED
0D5h
UART DATA SHIFT REGISTE R
0D6h
UART STATUS CONTROL REGIST ER
0D7h
WATCHDOG REGISTER
0D8h
RESERVED
0D9h
I/O INTE RRUPT POLARITY REGISTER
0DAh
OSCILLATOR CONTROL REGISTER
0DBh
SPI INTERRUPT DISABLE REGISTER
0DCh*
SPI DATA REGISTER
0DDh
RESERVED
0DEh
EEPROM CONTROL REGISTER
0DFh
ARTIM16 COMPARE MASK REG. LOW BYTE MASK
0E0h
ARTIM16 2ND STATUS CONTROL REGISTER SCR2
0E1h
ARTIM16 3RD STATUS CONTROL REGISTER SCR3
0E2h
ARTIM16 4TH STATUS CONTROL REGISTER SCR4
0E3h
ARTIM16 1ST STATUS CONTROL REGISTER SCR1
0E8h
ARTIM16 RELOAD CAPTUR E REG. HIGH BYTE RLCP
0E9h
ARTIM16 RELOAD CAPTURE REG. LOW BYTE RLCP
0EAh
ARTIM16 CAPT URE REGISTER HIGH BYTE CP
0EBh
ARTIM16 CAPTURE REGISTER LOW BYTE CP
0ECh
ARTIM16COMPAREVALUE REGISTE RHIGH BYTE CMP 0EDh
ARTIM 16 COMPARE VALUE REGISTER LOWBYTE CMP 0EEh
ARTIM 16 COMPARE MASK REG. HIGH BYTE MASK
0EFh
RESE RVED
0F0h
0FBh
PORT E DATA REGISTER
OFCh
PORT E DIRECTION REGISTER
0FDh
PORT E OPTION REGISTE R
0FEh
ACCUMULATOR
OFFh
* WRITE ONLY REGISTER
9
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