Yamaha RM1x Service Manual page 15

SED1335F0B (XQ595A00) LCDC (LCD Controller)
PIN
NAME I/O
NO.
1 VA5 O
2 VA4 O
3 VA3 O
4 VA2 O
5 VA1 O
6 VA0 O
7 /VWR O
8 /VCE O
9 /VRD -
10 /RES I
11 NC -
12 NC -
13 /RD I
14 /WR I
15 SEL2 I
16 SEL1 I
17 OSC1 I
18 OSC2 O
19 /CS I
20 A0 I
21 Vdd -
22 D0 I/O
23 D1 I/O
24 D2 I/O
25 D3 I/O
26 D4 I/O
27 D5 I/O
28 D6 I/O
29 D7 I/O
30 XD3 O
SED1335FOB (XQ595A00) LCDC
PIN
NAME I/O
NO.
1 VA5 O
2 VA4 O
3 VA3 O
4 VA2 O
5 VA1 O
6 VA0 O
7 /VWR O
8 /VCE O
9 NC -
10 /RES I
11 NC -
12 NC -
13 /RD I
14 /WR I
15 SEL2 I
16 SEL1 I
17 OSC1 I
18 OSC2 O
19 /CS I
20 A0 I
21 Vdd -
22 D0 I/O
23 D1 I/O
24 D2 I/O
25 D3 I/O
26 D4 I/O
27 D5 I/O
28 D6 I/O
29 D7 I/O
30 XD3 O
FUNCTION
VRAM address bus
VRAM read/write
Memory control
Not used
Initial clear
Not used
Not used
Read strobe
Write strobe
Bus select
Bus select
Clock
Clock
Chip select
Data mode select
Power supply
Data bus
Data bus output for 4 bit dot
FUNCTION
VRAM Address Bus
VRAM Write Signal
VRAM Chip enable
Reset Input Signal
Read Signal
Write Signal
Bus Select
Bus Select
Oscillator1
Oscillator2
Chip Select Input Signal
Data Bus Signal Kind Judgement
Power Supply
Data Bus for System
X Driver Data Bus
PIN
NAME I/O
NO.
31 XD2 O
32 XD1 O
33 XD0 O
34 XECL O
35 XSCL O
36 Vss -
37 LP O
38 WF O
39 YDIS O
40 YD O
41 YSCL O
42 VD7 I/O
43 VD6 I/O
44 VD5 I/O
45 VD4 I/O
46 VD3 I/O
47 VD2 I/O
48 VD1 I/O
49 VD0 I/O
50 VA15 O
51 VA14 O
52 VA13 O
53 VA12 O
54 VA11 O
55 VA10 O
56 VA9 O
57 VA8 O
58 VA7 O
59 VA6 O
60 NC -
PIN
NAME I/O
NO.
31 XD2 O
32 XD1 O
33 XD0 O
34 XECL O
35 XSCL O
36 Vss -
37 LP O
38 WF O
39 YDIS O
40 YD O
41 YSCL O
42 VD7 I/O
43 VD6 I/O
44 VD5 I/O
45 VD4 I/O
46 VD3 I/O
47 VD2 I/O
48 VD1 I/O
49 VD0 I/O
50 VA15 O
51 VA14 O
52 VA13 O
53 VA12 O
54 VA11 O
55 VA10 O
56 VA9 O
57 VA8 O
58 VA7 O
59 VA6 O
60 NC -
FUNCTION
Data bus output for 4 bit dot
S driver enable, chain clock
Data bus shift clock
Ground
X driver latch pulse
Frame signal for X/Y driver
Power down signal for displaying off mode
Scan start signal
Scan shift clock
VRAM data bus
VRAM address bus
Not used
FUNCTION
X Driver Data Bus
Xdriver Enable Change Clock
Xdriver Shift Clock
Groud
Latch Pulse
Frame Signal
LCD Power Down Output
Scan Start Pulse
Scan Sift Clock
VRAM Data Bus
VRAM Address Bus
RM1x
15