tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 189

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Input/Output Ports
7.11 Port A (PA0 through PA7)
The port A is a general-purpose, 8-bit input/output port. For this port, inputs and outputs can be specified in units
of bits by using the control register PACR and the function registers PAFC1 and PAFC2. A reset allows all bits
of the output latch PA to be set to "1," all bits of PACR, PAFC1 and PAFC2 to be cleared to "0," and the port A
to be put in input mode.
Input is disabled right after reset. To enable input, set the corresponding bit of PAIE to “1”.
Besides the input/output port function, the port A performs other functions: PA0 through PA5 input external
interrupts, PA0 through PA3, PA6 and PA7 count two-phase pulse input, and PA6 and PA7 input 16-bit timer.
PA read
(function control)
(function control)
(output control)
(output control)
(input control)
(output latch)
PAPUP
PAFC2
PAFC1
PACR
PAIE
PA
Drive disabled during
STOP/ RESET
Fig. 7.27 Port A (PA0 through PA3)
TMP19A44 (rev1.3) 7-41
1
PHC0IN0,PHC0IN1,
PHC1IN0,PHC1IN1
INT0~INT3
PORT KEEP
TMP19A44
Port A
PA0~PA3
(IN0~INT/PC0N0,PHC0I
1,PHCIN0,PHC1I1
2010-04-01
RESET