EM78862B View Datasheet(PDF) - ELAN Microelectronics
Part Name
Description
MFG CO.
'EM78862B' PDF : 40 Pages View PDF
EM78862B
8-Bit RISC Type Microprocessor
6.2.12.2 Page 1 (Port 7 Open Drain, Counter 1/2 Clock Source, Counter 1 Pre-Scaler)
Bit 7
OP77
Bit 6
OP76
Bit 5
C2S
Bit 4
C1S
Bit 3
PSC1
Bit 2
PSC0
Bit 1
0
Bit 0
0
Bit 0: Unused.
Bit 1: Unused.
Bit 2 ~ 3: (PSC0~PSC1) Counter1 prescaler, reset=(0,0)
PSC1
0
0
1
1
PSC0
0
1
0
1
Counter 1 Rate
1:1
1:4
1:8
Reserved
Bit 4:
(C1S) Counter 1 source.
0: 32768Hz / RC
1: 3.579MHz, if enable PLL (Crystal mode)
Bit 5:
(C2S) Counter 2 source. Scale=1:1
0: 32768Hz / RC
1: 3.579MHz, if enable PLL (Crystal mode)
Bit 6:
(OP76) P76 open-drain control
0: Disable
1: Enable
Bit 7:
(OP77) P77 open-drain control
0: Disable
1: Enable
6.2.13 IOCF (Interrupt Mask Register)
Bit 7
INT3
Bit 6
0
Bit 5
C8_2
Bit 4
C8_1
Bit 3
INT2
Bit 0 ~ 5, & Bit7: Interrupt enable bit.
0: Disable interrupt
1: Enable interrupt
Bit 6: Reserved. Clear the bit to ‘0’
Bit 2
INT1
NOTE
IOCF Register is readable and writable.
Bit 1
INT0
Bit 0
TCIF
18 of 36 Mar.01.2005 (V1.1)
This specification is subject to change without further notice.
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