NEC uPD72257, Preliminary User'S Manual

Page: 45 / 343

2.4.2.5 Ravin-M pinout option 6b
Setup Ravin-M pinout option 6b is set up by the following register setting:
SYSPINMUX = 00C0 0506
H
PINMUX[3:0] = 0110
B
pinout option 6
SMUX93 = 1
SMUX95 = 1
all other SMUXm = 0 VO1R0 output at pin 93
VO1B0 output at pin 95
no SMUX selection
BUFPUEN[7:0] = C0
H
internal pull-up resistors enabled for
- group 7: HINT, HADWAIT, HADCS, MDFBCLK,
VI0CLK
- group 6: VI0R[5:0]ITU[5:0], VI0G[1:0]ITU[7:6]
Features Ravin-M pinout option 6b provides following features:
• 16-bit ADBus Host-I/F
-
separate address/data buses HADD[15:0], HADA[20:0]
• Video Output I/F 0
-
18-bit RGB(6/6/6)
- composite VO0CSYNC or separate VO0HSYNC/VO0VSYNC
- VO0EN display enable signal
• Video Output I/F 1
-
18-bit RGB(6/6/6)
- composite VO1CSYNC or separate VO1HSYNC/VO1VSYNC or
VO1HSYNC and VO1EN (via VO1VSYNC selectable by
SYSVOCTR register)
• 16-bit SDRAM-I/F
H
os
t I
/F
8
bi
t m
ux
ed
3
/5
V
System Control Power Supply
3.3V, 1.5V Xtal, Reset, Test
32bit SD
V
O
1
1
6b
it
6/
6/
6
System Control Power Supply
3.3V, 1.5V
16-bit SDRAM
Xtal, Reset
TF
T
18
-b
it
R
G
B(
6/
6/
6)
V
id
eo
O
ut
0
18
-b
it
R
G
B(
6/
6/
6)
V
id
eo
O
ut
1
18
-b
it
R
G
B(
6/
6/
6)
TF
T
18
-b
it
R
G
B(
6/
6/
6)
Mem I/F 16-bit SDRAM
AD
Bu
s
H
os
t-I
/F
1
6-
bi
t
VO0EN
C/H/VSYNC
C/H/VSYNC
H
os
t
C
P
U
D
15
..0
, A
20
..0
H
os
t C
P
U
1
6-
bi
t separate buses D[15:0], A[20:0]
Figure 2-7 Ravin-M pinout option 6b
Pin Functions Chapter 2
Preliminary User's Manual S19203EE1V3UM00
45