tmp19a43fzxbg TOSHIBA Semiconductor CORPORATION, tmp19a43fzxbg Datasheet - Page 94

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

3.5.10
Port B (PB0-PB7)
or output. The control register PBCR is used to set the port for input or output. A reset clears PBCR to 0,
putting port B 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: PB0, PB1, PB3 and PB4 function as 16-bit timer input or
external interrupt input, PB2 and PB5 as 16-bit timer input or output, PB7 as 8-bit timer input, interrupt
input or key input. These functions are enabled by setting the corresponding bits of PBFC to 1.
enabled only when KWUPCNT<PE> is set to 1 in the key on wake-up circuit and key input is enabled in
KWUPSTn. For details, refer to the description of the key on wake-up function. When the pin is
functioning as a port pin, its pull-up resistor is disabled.
Timer F/F Output
Port B is an 8-bit general-purpose input/output port whose bits can each be set independently for input
A reset clears PBCR and PBFC to 0, placing port B in input mode. PB7 has a pull-up resistor, which is
TB2OUT
TB3OUT
TB4IN0
TB4IN1
Direction Control
Function Control
Write to PBCR
Write to PBFC
Output Latch
Write to P7
Read to P7
(bitwise)
(bitwise)
Reset
S
Figure 3.5.25 Port B (PB2, PB5)
TMP1942CY/CZ-93
A
B
Selector
Selector
S
S
B
A
TMP1942CY/CZ
STOP
DRIVE
PB2 (TB2OUT/TB4IN0)
PB5 (TB3OUT/TB4IN1)