Page 13
TMP89FM42
RA001
2.2.2.1
SFR
The SFR is mapped to 0x0000 to 0x003F (SFR1), 0x0F00 to 0x0FFF (SFR2) and 0x0E40 to 0x0EFF
(SFR3) in the data area after reset release.
Note: Don't access the reserved SFR.
2.2.2.2
RAM
The RAM is mapped to 0x0040 to 0x083F in the data area after reset release.
Note: The contents of the RAM become unstable when the power is turned on and immediately after a reset
is released. To execute the program by using the RAM, transfer the program to be executed in the ini-
tialization routine.
2.2.2.3
BOOTROM
The BOOTROM is not mapped in the code area or the data area after reset release.
Note: The flash memory control register 1 has a double-buffer structure comprised of the register FLSCR1 and a shift register.
Writing "0xD5" to the register FLSCR2 allows a register setting to be reflected and take effect in the shift register. This
means that a register setting value does not take effect until "0xD5" is written to the register FLSCR2. The value of the shift
register can be checked by reading the register FLSCRM.
Example: RAM initialization program
LD
HL, RAM_TOP_ADDRESS
; Head of address of the RAM to be initialized
LD
A, 0x00
; Initialization data
LD
BC, BYTE_OF_CLEAR_BYTES
; Number of bytes of RAM to be initialized -1
CLR_RAM:
LD
(HL), A
; Initialization of the RAM
INC
HL
; Initialization address increment
DEC
BC
; Have all the RAMs been initialized?
JRS
F, CLR_RAM
Setting FLSMD<BAREA> to "1" maps the BOOTROM to 0x1000 to 0x17FF in the code area and to
0x1000 to 0x17FF in the data area. The BOOTROM can be easily written into the Flash by using the Ap-
plication Programming Interface (API) integrated in the BOOTROM.
Note 1: When the BOOTROM is not mapped in the data area, 0xFF is read from 0x1000 to 0x17FF.
Note2:
Only the first 2 Kbytes of the BOOTROM are mapped in the memory map, except in the serial PROM
mode.
Flash memory control register 1
FLSCR1
(0x0FD0)
7
6
5
4
3
2
1
0
Bit Symbol
(FLSMD)
BAREA
(FAREA)
(ROMSEL)
Read/Write
R/W
R/W
R/W
R/W
After reset
0
1
0
0
0
0
0
0
BAREA
Specifies mapping of the
BOOTROM in the code and data
areas
0 :
1 :
The BOOTROM is not mapped to 0x1000 to 0x17FF in the code area and
to 0x1000 to 0x17FF in the data area.
The BOOTROM is mapped to 0x1000 to 0x17FF in the code area and to
0x1000 to 0x17FF in the data area.
Flash memory control register 2
FLSCR2
7
6
5
4
3
2
1
0
(0x0FD1)
Bit Symbol
CR1EN
Read/Write
W
After reset
*
*
*
*
*
*
*
*
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......