3-101
Pin description
Pin No.
Pin Name
Type
Description
1
DGND
-
-
-
Digital GND
2
PULLUP
-
-
-
Pull-up resistance connecting port.[5V or 3.3V]
3
DASO
5V_tolerant
I/O
Pull-up
Drive active slave presesnt signal.[open/drain]
4
HCS1
5V_tolerant
I
-
Host interface chip, pull-up selection input.
5
HCS0
5V_tolerant
I
-
Host interface chip, pull-up selection input.
6
HDA2
5V_tolerant
I
-
Host interface chip, address signal input.
7
HDAO
5V_tolerant
I
-
Host interface chip, address signal input.
8
PDIAG
5V_tolerant
I/O
Pull-up
Diagnostic signal [open/drain]
9
HDA1
5V_tolerant
I
-
Host interface chip, address signal input.
10
HIOCS16
5V_tolerant
I
Pull-up
16 bit I/O signal [open/drain]. When Ultra DMA burst, this is 3 state
port.
11
HINTRQ
5V_tolerant
O
Pull-up
Host interrupt signal output.
12
DVDD33
-
-
-
Digital power[3.3V]
13
DGND
-
-
-
Digital GND
14
HDMACK
5V_tolerant
I/O
-
DMA acknowledge signal.
15
IORDY
5V_tolerant
I
Pull-up
I/O Channel ready[open/drain]. When Ultra DMA burst, this is
DDMARDY: DSTROBE signal.
16
DIOR
5V_tolerant
I/O
-
Host interface read input signal. When Ultra DMA burst, this is
HDMARDY: HSTROBE signal.
17
DIOW
5V_tolerant
I/O
-
Host interface write input signal. When Ultra DMA burst, this is STOP
signal.
18
HDMARQ
5V_tolerant
O
Pull-up
DMA request signal output.
19
DVDD25
-
-
-
Digital power[2.5V]
20
HDD15
5V_tolerant
I/O
Pull-up
Host interface data bus.[within slave resistance]
HDD8
21
HDD0
5V_tolerant
O
Pull-up
Host interface data bus.[within slave resistance]
HDD6
22
HDD14
5V_tolerant
I/O
Pull-up
Host interface data bus.[within slave resistance]
HDD9
23
HDD1
5V_tolerant
I/O
Pull-up
Host interface data bus.[within slave resistance]
24
DVDD33
-
-
-
Digital power[3.3V]
25
DGND
-
-
-
Digital GND
26
HDD13
5V_tolerant
I/O
Pull-up
Host interface data bus.[within slave resistance]
HDD10
27
HDD2
5V_tolerant
I/O
Pull-up
Host interface data bus.[within slave resistance]
HDD4
Summary of Contents for RH4820W
Page 40: ...3 41 3 42 2 E5 BGA POWER UART2 CIRCUIT DIAGRAM E5 BAG POWER UART2 ...
Page 43: ...3 47 3 48 5 1394 ETHERNET CONNECTOR CIRCUIT DIAGRAM 1394 ETHERNET CONNECTOR ...
Page 44: ...3 49 3 50 VIDEO IN OUT 6 VIDEO IN OUT CIRCUIT DIAGRAM ...
Page 45: ...3 51 3 52 7 AUDIO IN OUT CIRCUIT DIAGRAM AUDIO IN OUT ...
Page 46: ...3 53 3 54 8 I O MICOM CIRCUIT DIAGRAM SR17208A I O MICOM ...
Page 47: ...3 55 3 56 9 TUNER VIDEO IN OUT CIRCUIT DIAGRAM SR17209A TUNER VIDEO IN OUT 3 9K 3 9K ...
Page 48: ...3 57 3 58 10 FRONT CIRCUIT DIAGRAM HDD VDR_FRONT ...
Page 54: ...3 69 3 70 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE LOCATION GUIDE ...
Page 55: ...3 71 3 72 2 MAIN P C BOARD BOTTOM SIDE LOCATION GUIDE ...
Page 57: ...3 75 3 76 5 FRONT P C BOARD LOCATION GUIDE 6 KEY P C BOARD ...
Page 58: ...3 77 3 78 7 POWER P C BOARD LOCATION GUIDE ...
Page 88: ...3 108 4 IC302 uPD76f0047 MICOM Pin Assignment ...
Page 110: ......
Page 112: ...3 132 3 133 2 DSP CIRCUIT DIAGRAM No Power No operation DSP IC RESET IC SDRAM R259 0Ω ...
Page 114: ...3 136 3 137 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...