tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 201

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

19.3.3 Example Connection for On-Board Writing
GND
BOOT / RXD (P44)
Note 1: For connection of other pins, refer to " Table 19-3 Pin Function in the Serial PROM Mode ".
Figure 19-3 shows an example connection to perform on-board wring.
Note 1: When other parts on the application board effect the UART communication in the serial PROM mode, iso-
Note 2: When the reset control circuit on the application board effects activation of the serial PROM mode, isolate
TXD (P45)
late these pins by a jumper or switch.
the pin by a jumper or switch.
RESET
TEST
Figure 19-3 Example Connection for On-Board Writing
VDD
VSS
Application board
Figure 19-2 Serial PROM Mode Pin Setting
VSS
Serial PROM mode
MCU mode
(Note 1)
Other
parts
TMP88F846UG
(Note 2)
RESET
control
BOOT / RXD (P44)
Page 191
TXD (P45)
RESET
TEST
VDD
Pull-up
GND
VDD(4.5 V to 5.5 V)
RC power-on
reset circuit
MCU mode
Pull-up
External control board
Serial PROM mode
VDD(4.5 V to 5.5 V)
converter
Level
External control
TMP88F846UG
PC control