tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 202

• Manufacturer Part Number: tmp88f846ug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

19.3 Serial PROM Mode Setting
19. Serial PROM Mode
BOOT/RXD (Input)
19.3.4 Activating the Serial PROM Mode
VDD
TEST(Input)
RESET(Input)
PROGRAM
shows a serial PROM mode timing.
Note 3: For connection of other pins, refer to " Table 19-3 Pin Function in the Serial PROM Mode ".
The following is a procedure to activate the serial PROM mode. " Figure 19-4 Serial PROM Mode Timing "
1. Supply power to the VDD pin.
2. Set the
3. Set the TEST pin and BOOT/RXD pins to high.
4. Wait until the power supply and clock oscillation stabilize.
5. Set the
6. Input the matching data (5AH) to the BOOT/RXD pin after setup sequence. For details of the setup
timing, refer to " 19.16 UART Timing ".
RESET
RESET
Figure 19-4 Serial PROM Mode Timing
pin to low.
pin to high.
don't care
High level setting
Reset mode
Page 192
Setup time for serial PROM mode (Rxsup)
Serial PROM mode
Matching data
input
TMP88F846UG