TMP86FS27FG 查看數據表（PDF） - Toshiba

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TMP86FS27FG

CMOS 8-Bit Microcontroller

Toshiba 

TMP86FS27

2.4 Interface Specifications for UART

The following shows the UART communication format used in serial PROM mode.

Before on-board programming can be executed, the communication format on the external

controller side must also be setup in the same way as for this product.

Note that although the default baud rate is 9,600 bps, it can be changed to other values as shown

in Table 2.4.1. The Table 2.4.2 shows an operating frequency and baud rate in serial PROM mode.

Except frequency which is not described in Table 2.4.2 can not use in serial PROM mode.

Baud rate (Default): 9,600 bps

Data length: 8 bits

Parity addition: None

Stop bit length: 1 bit

Table 2.4.1 Baud Rate Modification Data

Baud rate modification data 04H

Baud rate (bps)

76800

05H

62500

07H

38400

0AH

31250

18H

19200

28H

9600

Table 2.4.2 Operating Frequency and Baud Rate in Serial PROM Mode

Reference Baud

Rate (Baud)

Baud Rate

Modification Data

Reference

Frequency

(MHz)

2

4

8

16

76800

04H

(bps) (%)

–

–

–

76923

–

–

–

+0.16

62500

05H

(bps) (%)

–

–

–

–

62500 0.00

62500 0.00

38400

07H

31250

0AH

(bps) (%) (bps) (%)

–

–

–

–

–

– 31250 0.00

38462 +0.16 31250 0.00

38462 +0.16 31250 0.00

19200

18H

9600

28H

(bps) (%) (bps) (%)

–

19231

19231

19231

–

+0.16

+0.16

+0.16

9615

9615

9615

9615

+0.16

+0.16

+0.16

+0.16

Note: “Reference Frequency” shows the high-frequency area supported in serial PROM mode.

Except the above frequency can not be supported in serial PROM mode.

2.5 Command

There are five commands in serial PROM mode. After reset release, the TMP86FS27 waits a

matching data (5AH).

Table 2.5.1 Command in Serial PROM Mode

Command Data

5AH

30H

60H

90H

C0H

Operation Mode

Setup

Flash memory writing

RAM loader

Flash memory SUM output

Product discrimination code output

Remarks

Matching data. Always start with this command after reset release.

Writing to area from 1000H to FFFFH is enable.

Writing to area from 0050H to 0430H is enable.

The checksum of entire flash memory area (from 1000H to FFFFH)

is output in order of the upper byte and the lower byte.

Product discrimination code, that is expressed by 13 bytes data, is

output.

86FS27-11

2007-08-07

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