TMP86FS27FG Просмотр технического описания (PDF) - Toshiba

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TMP86FS27FG

CMOS 8-Bit Microcontroller

Toshiba 

To set a serial PROM mode, connect device pins as shown in Figure 2.3.1.

TMP86FS27

TMP86FS27

VDD

AVDD

TEST

VDD(4.5 V to 5.5 V)

P00

BOOT1/RXD

P01

BOOT2/TXD

XIN

RESET

XOUT

VAREF

VSS

OPEN or analog reference voltage.

: Pull up

2.3.3

Figure 2.3.1 Serial PROM Mode Port Setting

Activating Serial PROM Mode

The following is a procedure of setting of serial PROM mode. Figure 2.3.2 shows a serial PROM

mode timing.

(1) Turn on the power to the VDD pin.

(2) Set the RESET to low level.

(3) Set the TEST, BOOT1 and BOOT2 pin to high level.

(4) Wait until the power supply and clock sufficiently stabilize.

(5) Release the RESET (Set to high level).

(6) Input a matching data (5AH) to BOOT1/RXD pin after waiting for setup sequence. For details

of the setup timing, refer to 2.14 “UART Timing”.

VDD

TEST (Input)

RESET (Input)

Program

BOOT1 (Input)/

RXD (Input)

BOOT2 (Input)/

TXD (Output)

Indeterminate

Reset mode

Fixed to high level by pull up

Serial PROM mode

Setup time for serial PROM mode (Rxsup)

Matching

data input

Figure 2.3.2 Serial PROM Mode Timing

86FS27-10

2007-08-07

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