tmp19a43fzxbg TOSHIBA Semiconductor CORPORATION, tmp19a43fzxbg Datasheet - Page 90

• Manufacturer Part Number: tmp19a43fzxbg
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

3.5
3.5.9
Port A (PA0-PA7)
or output. The control register PACR is used to set the port for input or output. A reset clears PACR to 0,
putting port A in input mode. In addition to functioning as an input/output port, the pins of this port can
also function as various input/output pins: PA0, PA1, PA3 and PA4 function as 16-bit timer input or
external interrupt input, PA2 and PA5 as 16-bit timer output, PA6 as 8-bit timer output, and PA7 as 8-bit
timer input or key input. These functions are enabled by setting the corresponding bits of PAFC to 1.
enabled only when KWUPCNT<PE> is set to 1 in the key on wake-up circuit and key input is enabled by
setting 1 in PAFC. When the pin is functioning as a port pin, its pull-up resistor is disabled.
Port A is an 8-bit general-purpose input/output port whose bits can each be set independently for input
A reset clears PACR and PAFC to 0, placing port A in input mode. PA7 has a pull-up resistor, which is
Timer F/F Output
TB0OUT
TB1OUT
TA1OUT
Direction Control
Function Control
Write to PACR
Write to PAFC
Output Latch
Write to PA
(bitwise)
(bitwise)
Read PA
Figure 3.5.21 Port A (PA2, PA5, PA6)
Reset
S
TMP1942CY/CZ-89
A
B
Selector
Selector
S
S
B
A
TMP1942CY/CZ
STOP
DRIVE
PA2 (TB0OUT)
PA5 (TB1OUT)
PA6 (TA1OUT)