M3882 Datasheet, PDF (17/62 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3882 Group
(12) Ports P73 to P75
Direction
register
Data bus
Port latch
✻2 ^{Interrupt input}
(13) Port P76, P77
Direction
register
Data bus
Port latch
✻2
(14) Ports P80 to P83
LPC enable bit
Direction
register
Data bus
Port latch
LAD [3 : 0]
(16) Port P87
SIRQ enable bit
Direction
register
Data bus
Port latch
IRQSER
(15) Ports P84 to P86
LPC enable bit
Direction
register
Data bus
Port latch
LRESET
LCLK
LFRAME
✻2. The input level can be switched between CMOS compatible input level and TTL level by the P7 input level selection bit of the port
control register 2 (PCTL2).
Reading the port P8 direction register is switched to port P7 pin input level by the P8 function selection bit of the port control register 2
(PCTL2).
Fig. 12 Port block diagram (3)
Rev.1.01 Nov 14, 2005 page 17 of 60
REJ03B0089-0101