EM78P468NBQ EMC [ELAN Microelectronics Corp], EM78P468NBQ Datasheet - Page 17

• Manufacturer Part Number: EM78P468NBQ
• Description: 8-BIT Microcontroller
• Manufacturer: EMC [ELAN Microelectronics Corp]

Product Specification (V1.2) 03.15.2005
(This specification is subject to change without further notice)
4.1.6
4.1.7
4.1.8
4.1.9
Bits 5 ~ 0 (RSR5 ~ RSR0) : are used to select up to 6
indire
8-
Bit 7~4 : 4-bits I/O registers of PORT5
User can use IOC50 register to def
Bit 3~
Bit 0 (
Bit 7~0 : 8-bit I/O registers of PORT 6
User
Bit 7
User can use IO 70 regi
Bi
User can use IO 80 regis
bit gen
t 7~0 :
Bit 7
Bit 7
Bit 7
Bit 7
R57
R67
R77
R87
~0 :
can use IOC60 register to define inpu
ct addressing mode.
IOCPAGE = “0” : Page 0 (select register of IOC 50 to IOC F0)
IOCPAGE = “1” : Page 1 (sel
R
(Address: 05h)
R6/PORT6
(Address: 06h)
R7/PORT7 (PORT 7 I/O Data
(Address: 07h)
R
(Address: 08h)
1 :
IOC
5/PO
8/POR
eral
Not used
8-bit I/O registers
8-bit
PAGE) : change IOC5 ~ I
purpo
Bit 6
Bit 6
Bit 6
Bit 6
R56
R66
R76
R86
RT5
I/O re
T8
C
C
ses
(P
(PORT 6 I/O Data Register)
(PO
gist
ORT
read/w
Bit 5
ers of P
R55
Bit 5
Bit 5
Bit 5
R65
R75
R85
ster to define input
RT 8 I/O Data R
ter
If no indirect addressing is used, the RSR can be used as an
of PORT 7
to d
5
rite
OR
I/O Data
r regist
efine inpu or output each bit.
Bit 4
R54
Bit 4
T 8
ine input or
Bit 4
Bit 4
R64
R74
R84
ect register of IOC 61 to IOC E1)
OCF to an
er.
an Pa
Register)
t or output each bit.
t
or
Bit 3
eg
Bit 3
Bit 3
Bit 3
d
R63
R73
R83
--
other page
output each bit.
output each bit.
ister)
ge of Register Se ect)
4 registers (address: 00~3F) in the
Bit 2
Bit 2
Bit 2
Bit 2
R62
--
R72
R82
8-BIT Microcontroller
Bit 1
Bit 1
Bit 1
Bit 1
R61
--
R71
R81
EM78P468N
l
IOCPAGE
Bit 0
Bit 0
Bit 0
Bit 0
R60
R70
R80
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