TMP92CD54I Datasheet, PDF (54/343 Pages) Toshiba Semiconductor – 32-bit Micro-controller

TMP92CD54I
3.5.6 Port F (PF0 to PF7)
PortF is an 8-bit general-purpose I/O port. Bits can be individually set as either inputs or o
outputs by control register PFCR and function register PFFC.
In addition to functioning as a general-purpose I/O port, PortF can also function as serial
channels I/O function and controller area network (CAN).
The pin is always enabled for the following input signals: serial receive data RXD0^#1, RXD1^#1,
CAN receive data RX^#1, Clear-to-send CTS0^#1, CTS1^#1, and serial clock SCLK0^#1, SCLK1^#1.
#1 : In IDLE3/STOP mode, input signal is invalid (Input gate closed)
A reset initializes PortF to input port mode.
PFCR register
PFFC register
PF register
TXD output
Port read data
S1
0
Selector
S
0
1
Selector
When PFCR register is
“0” and PFFC register
is “1”, TXD is open
drain output.
PF0 (TXD0)
PF3 (TXD1)
PFCR register
PFFC register
PF register
TX output
Port read data
S1
0
Selector
S
0
1
Selector
PF6 (TX)
Figure 3.5.7 PortF (PF0, PF3, PF6)
92CD54I-54
2006-01-27