tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 149

• Manufacturer Part Number: tmp19a61f10xbg
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

7.18 Port H (PH0~PH7)
PH read
(Function control)
The port H is a general-purpose, 8-bit input/output port. For this port, inputs and outputs
can be specified in units of bits. Outputs can be set by using the control register PHCR and
the function register PHFCx. A reset allows all bits of the PH to be set to "1," all bits of
PHCR, PHFC1 and PHFC2 to be cleared to "0," and the port H to be put in output disable
mode.
Besides the input/output port function, the port H performs other functions: PH0 through
PH2 and PH4 through PH6 have a serial communication function (SIO/UART ch4 and ch5).
PH3 and PH7 input external interrupt (INT9 and INTA).
If the port H is used as UART/SIO function port, select the function with the function register
of the corresponding port and set the open drain control register along with the serial
setting register. When the function registers 1 and 2 are set as the port, please do not set
any other function.
(Output control)
(Select control)
(Output latch)
(Input control)
PHFC1
PHSEL
(Open drain
PHCR
PHOD
PHIE
control)
PH
STOP/RESET
Fig. 7.34 Port H (PH0,PH4)
TMP19A61(rev1.0)7-148
drive disable
TXD4
TXD5 1
0
1
0
TMP19A61
Port H
PH0,PH4
(TXD4,TXD5)