TMP88FW44FG Datasheet, PDF (241/282 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

TMP88FW44FG
GND
TMP88FW44FG
VDD
P11
P10
XIN
XOUT
VSS
TEST
BOOT / RXD1 (P44)
TXD1 (P45)
RESET
VDD(4.5 V to 5.5 V)
Serial PROM mode
MCU mode
Pull-up
External control
Figure 20-2 Serial PROM Mode Pin Setting
Note 1: For connection of other pins, refer to " Table 20-3 Pin Function in the Serial PROM Mode ".
20.3.3 Example Connection for On-Board Writing
Figure 20-3 shows an example connection to perform on-board wring.
VDD
TEST
BOOT / RXD1 (P44)
TXD1 (P45)
XIN
XOUT
RESET
Serial PROM mode
MCU mode
Other
parts
(Note 1)
(Note 2)
RESET
control
VDD(4.5 V to 5.5 V)
Pull-up
Level
converter
PC control
RC power-on
reset circuit
VSS
P10
P11
GND
Application board
External control board
Figure 20-3 Example Connection for On-Board Writing
Note 1: When other parts on the application board effect the UART communication in the serial PROM mode, iso-
late these pins by a jumper or switch.
Note 2: When the reset control circuit on the application board effects activation of the serial PROM mode, isolate
the pin by a jumper or switch.
Note 3: For connection of other pins, refer to " Table 20-3 Pin Function in the Serial PROM Mode ".
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