tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 199

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

Input/Output Ports
7.13 Port C (PC0 to PC7)
Port C 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 PCCR and the function registers PCFC1 and PCFC2. A reset allows all bits of
the output latch PC to be set to "1," all bits of PCCR, PCFC1 and PCFC2 to be cleared to "0," and the port C to
be put in input mode.
Input is disabled right after reset. To enable input, set the corresponding bit of PCIE to “1”.
Besides the input/output port function, the port C performs other functions: PC0 inputs external clock sources
into a 32-bit time base timer and inputs the key-on wake-up, PC1 through PC3 and PC7 perform the 32-bit
compare output function, and PC4 through PC6 input and output SBI.
PC read
TBTIN
(function control)
(function control)
(output control)
(output control)
(input control)
(output latch)
PCPUP
PCFC1
PCFC2
PCCR
PCIE
PC
Drive disabled during
STOP/ RESET
TMP19A44 (rev1.3) 7-51
0
1
Fig. 7.35 Port C (PC0)
PORT KEEP
KEY30
0
1
0
1
TMP19A44
2010-04-01
Port C
PC0
(TBTIN/KEY30)
RESET