M1 D T 1 0P509(A)
P509(A)
5. Pin Function Description
Pin Name
PB0,PB1,PB3~PB5
RTCC/PB2
/MCLR
VDD
VSS
I/O
I/O
I/O
I
Function Description
Port B, TTL input level, PB3 input only.
Real Time Clock/Counter, Schmitt Trigger input levels.
Master Clear, Schmitt Trigger input levels.
Power supply
Ground
6. Memory Map
(A) Register Map
Address
BANK0
00
01
02
03
04
05
06
07~1F
BANK1
30~3F
General purpose registers
Indirect Addressing Register
RTCC
PC
STATUS
MSR
OSCCON
Port B
General purpose registers
Description
(1) IAR ( Indirect Address Register) : R0
(2) RTCC (Real Time Counter/Counter Register) : R1
P.2
2010/7 PA