Internal Block Diagram Of Ics; Port Assignment; Port Description - LG LAC-M8410R Service Manual

❏ INTERNAL BLOCK DIAGRAM of ICs
I IC401 LC876B

1) PORT ASSIGNMENT

2) PORT DESCRIPTION

Pin Name in Micom
1 P16/T1PWML
2 P17/T1PWMH/BUZ
3 SI2P0/SO2
4 SI2P1/SI2/SB2
5 P32/INT4/T1IN
6 P33/INT4/T1IN
7 P34/INT5/T1IN
8 P35/INT5/T1IN
9 SI2P2/SCK2/INT5/T1IN/AN12
10 SI2P3/SCK20/INT5/T1IN/AN13
11 /RESET
12 XT1/AN10
13 XT2/AN11
14 VSS1
15 CF1
Name in Model Enable I/O I/O setted Output Format Descripation
PEV_DO I/O
PBEEP I/O
PMCM_DO I/O
PMCM_DI I/O
PDSP_OGCTL I/O
PEV_CLK I/O
PCD_IFSEQ I/O
PPLL_CE I/O
PMCM_CLK I/O
PSTANDBY I/O
/RESET I
XT1 I
XT2 I/O
GND -
CF1 I
- 2-14 -
O CMOS To volume controller, data output
O CMOS Beep sound output
O CMOS To front micom, data output
I N-ch From front micom, data input
O CMOS RF IC control signal output (gain up)
O CMOS Clock for interface with volume controller
I N-ch Constant velocity signal input
O CMOS PLL IC enable output
I CMOS Clock output for interface with front micom
O CMOS To power amp, "STANDBY" command output
I - Reset
I - Sub clock 32.7 68 KHz
O - Sub clock 32.7 68 KHz
- - Ground
I - X'tal 9.8304 MHz