tmp86fh46bng TOSHIBA Semiconductor CORPORATION, tmp86fh46bng Datasheet - Page 169

• Manufacturer Part Number: tmp86fh46bng
• Description: 8 Bit Microcontroller Tlcs-870/c Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

15. Serial PROM Mode
15.1
15.2
ROM is available in the serial PROM mode, and controlled by TEST, BOOT and RESET 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 eras-
ing and Flash memory security program setting. Memory address mapping in the serial PROM mode differs from
that in the MCU mode. Figure 15-1 shows memory address mapping in the serial PROM mode.
The TMP86FH46BNG has a 2048 byte BOOTROM (Mask ROM) for programming to flash memory. The BOOT-
The Figure 15-1 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 7800H to 7FFFH.
Note:Though included in above operating range, some of high frequencies are not supported in the serial PROM
Outline
Memory Mapping
mode. For details, refer to “Table 15-5”.
Flash memory
Table 15-1 Operating Range in the Serial PROM Mode
BOOTROM
Power supply
High frequency (Note)
RAM
DBR
SFR
Parameter
0FFFH
7FFFH
C000H
FFFFH
0000H
003FH
0040H
7800H
023FH
0F80H
Figure 15-1 Memory Address Maps
Serial PROM mode
2048 bytes
16384
64 bytes
512 bytes
128 bytes
bytes
Min
4.5
2
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Flash memory
RAM
DBR
SFR
Max
5.5
16
FFFFH
003FH
0FFFH
C000H
0000H
0040H
023FH
0F80H
MCU mode
16384
64 bytes
512 bytes
128 bytes
MHz
bytes
Unit
V
TMP86FH46BNG