tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 249

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

21. Serial PROM Mode
21.1
21.2
ROM is available in the serial PROM mode, and controlled by TEST, BOOT, RESET and some pins. Communication
is performed via UART. The serial PROM mode has seven types of operating mode: Flash memory writing, RAM
loader, Flash memory SUM output, Product ID code output, Flash memory status output, Flash memory erasing and
Flash memory security program setting. Memory address mapping in the serial PROM mode differs from that in the
MCU mode. Figure 21-1 shows memory address mapping in the serial PROM mode.
The TMP88FW45AFG has a 4096 byte BOOTROM (Mask ROM) for programming to flash memory. The BOOT-
The Figure 21-1 shows memory mapping in the Serial PROM mode and MCU mode.
In the serial PROM mode, the BOOTROM (Mask ROM) is mapped in addresses from 3000H to 3FFFH.
Note 1: Though included in above operating range, some of high frequencies are not supported in the serial PROM mode. For
Note 2: In Serial PROM mode, accessing to registers of oscillation frequency detection is disabled. Therefore oscillation frequency
Outline
Memory Mapping
Flash memory
BOOTROM
EBR, DBR
details, refer to “Table 21-5”.
detection is not available in the Serial PROM mode.
Table 21-1 Operating Range in the Serial PROM Mode
Power supply
High frequency (Note)
RAM
SFR
Parameter
010BFH
01FFFH
03FFFH
21EFFH
FFFFFH
0003FH
01F70H
FFF00H
00000H
00040H
03000H
04000H
Serial PROM mode
Figure 21-1 Memory Address Maps
4096 +128 bytes
122624 bytes
4096 bytes
Vector table
(256 bytes)
144 bytes
64 bytes
Min
4.5
8
Page 235
Flash memory
EBR, DBR
RAM
SFR
Max
5.5
20
010BFH
01FFFH
21EFFH
FFFFFH
0003FH
01F70H
FFF00H
00000H
00040H
04000H
4096 +128 bytes
Vector table
122624 bytes
(256 bytes)
MCU mode
144 bytes
64 bytes
MHz
Unit
V
TMP88FW45AFG