RB-S22660GD32
User’s Manual
FEBL22660GDRB
5
3.12. CN2 connector
CN2 connector is used to connect to the pins of Speech Synthesis LSIs.
CN2
Pin No
LSI
I/O
Pin No
Pin Name
SDCB3
connection
Single unit
serial flash memory interface:
Enable
Single unit
serial flash memory interface:
Disable
1
19
DVDD
*1
O
I
I
2
19
DVDD
*1
O
I
I
3
28
RESETB
O
I
I
4
29
TEST0
O
I
I
5
30
STATUS1
O
O
O
6
31
STATUS2
O
O
O
7
32
CBUSYB
O
O
O
8
-
-
-
-
-
9
4
SCL
O
I
I
10
5
SDA
O
I/O
I/O
11
-
-
-
-
-
12
10
ERSCK
*4
O
I
I
13
12
ERSO
*4
O
I
I
14
11
ERSI
O
O
O
15
1, 18 DGND
-
-
-
16
1, 18 DGND
-
-
-
17
9
ERCSB
O
O
I
18
10
ERSCK
O
O
I
19
11
ERSI
O
O
O
20
12
ERSO
O
O
I
21
13
EROFF
O
O
I
22
-
-
-
-
-
23
14
IOVDD
*1,3
O
I
I
24
-
-
-
-
-
25
1, 18 DGND
-
-
-
26
1, 18 DGND
-
-
-
27
16
XTB
*2
O
O
O
28
17
XT
*2
O
I
I
29
1, 18 DGND
-
-
-
30
1, 18 DGND
-
-
-
*1 Do not supply DVDD,IOVDD from CN2 when connecting SDCB3.
*2 When the J1 and J2 lands are connected, the XT and XTB pins of Speech Synthesis LSIs are input and output.
*3 Supply IOVDD externally when IOVDD jumper pin is set to CN2.
*4 When IOVDD jumper pin is set to SDCB3, this pin is not connected to the terminal of the speech synthesis LSI. When
IOVDD jumper pin is set to CN2, this pin is connected to the pin of the speech synthesis LSI.
Figure 7 CN2 connectors hole pattern