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EM78P468N/EM78P468L
8-Bit Microcontroller
26 •
Product Specification (V1.5) 02.15.2007
(This specification is subject to change without further notice)
Table 2 Summary of Registers Initialized Values
Address Name Reset Type Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit Name IOC57 IOC56 IOC55 IOC54 P8HS P8LS P7HS P7LS
Power-on 1 1 1 1 0 0 0 0
/RESET & WDT 1 1 1 1 0 0 0 0
0x05
IOC50
(P5CR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name IOC67 IOC66 IOC65 IOC64 IOC63 IOC62 IOC61 IOC60
Power-on 1 1 1 1 1 1 1 1
/RESET & WDT 1 1 1 1 1 1 1 1
0x06
IOC60
(P6CR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name IOC77 IOC76 IOC75 IOC74 IOC73 IOC72 IOC71 IOC70
Power-on 1 1 1 1 1 1 1 1
/RESET & WDT 1 1 1 1 1 1 1 1
0x07
IOC70
(P7CR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name IOC87 IOC86 IOC85 IOC84 IOC83 IOC82 IOC81 IOC80
Power-on 1 1 1 1 1 1 1 1
/RESET & WDT 1 1 1 1 1 1 1 1
0x08
IOC80
(P8CR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name X RAM_A6 RAM_A5 RAM_A4 RAM_A3 RAM_A2 RAM_A1
RAM_A0
Power-on 0 0 0 0 0 0 0 0
/RESET & WDT 0 0 0 0 0 0 0 0
0x09
IOC90
(RAM_ADDR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name
RAM_D7 RAM_D6 RAM_D5 RAM_D4 RAM_D3 RAM_D2 RAM_D1 RAM_D0
Power-on U U U U U U U U
/RESET & WDT P P P P P P P P
0x0A
IOCA0
(RAM_DB)
Wake-Up from
Pin Change
P P P P P P P P
Bit Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Power-on 0 0 0 0 0 0 0 0
/RESET & WDT 0 0 0 0 0 0 0 0
0x0B
IOCB0
(CNT1PR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Power-on 0 0 0 0 0 0 0 0
/RESET & WDT 0 0 0 0 0 0 0 0
0x0C
IOCC0
(CNT2PR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Power-on 0 0 0 0 0 0 0 0
/RESET & WDT 0 0 0 0 0 0 0 0
0x0D
IOCD0
(HPWTPR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Power-on 0 0 0 0 0 0 0 0
/RESET & WDT 0 0 0 0 0 0 0 0
0x0E
IOCE0
(LPWTPR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name ICIE LPWTE HPWTE CNT2E CNT1E INT1E INT0E TCIE
Power-on 0 0 0 0 0 0 0 0
/RESET & WDT 0 0 0 0 0 0 0 0
0x0F
IOCF0
(IMR)
Wake-up from
Pin Change
P P P P P P P P
Bit Name IROCS X X X /WUE8H /WUE8L /WUE6H /WUE6L
Power-on 0 U U U 0 0 0 0
/RESET & WDT 0 U U U 0 0 0 0
0x06
IOC61
(WUCR)
Wake-up from
Pin Change
P U U U P P P P