tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 252

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

21.3
Serial PROM Mode Setting
21.3.4
BOOT/RXD1 (Input)
shows a serial PROM mode timing.
VDD
TEST(Input)
RESET(Input)
PROGRAM
The following is a procedure to activate the serial PROM mode. "Figure 21-4 Serial PROM Mode Timing"
Activating the Serial PROM Mode
1. Supply power to the VDD pin.
2. Set the RESET pin to low.
3. Set the TEST pin and BOOT/RXD1 pins to high.And set P10,P11 pins to low.
4. Wait until the power supply and clock oscillation stabilize.
5. Set the RESET pin to high.
6. Input the matching data (5AH) to the BOOT/RXD1 pin after setup sequence. For details of the setup
timing, refer to "21.16 UART Timing".
Figure 21-4 Serial PROM Mode Timing
don't care
High level setting
Reset mode
Page 238
Setup time for serial PROM mode (Rxsup)
Serial PROM mode
TMP88FW45AFG
Matching data
input