DVR-640H-S
116
1
2
4
1
2
3
4
C
D
F
A
B
E
Signal
Type
Active
Level
Pin/Signal
Description
OSC
1
I
OSC
2
IO
Terminal for OSC.
Hardware reset.
Chip select.
Write strobe.
Read strobe.
/RESET
I
L
/CS
I
L
/WR
I
L
/RD
I
L
A
12
:A
1
I
Address bus for an addressing space of 8K bytes.
D
15
:D
0
IO
16-bit data bus.
TEST
I
H
Factory test mode.
/EXVBO
O
L
Turn on/off the external V
BUS
(5V) for OTG operation (1: V
BUS
off; 0: V
BUS
on).
/PO
O
L
Turn on/off the gang power for all Host ports.
/OC
I
L
Over current condition indicator for gang powered Host ports.
INT
1
O/WO
PL
Interrupt to the MCU.
ID I
Connected to the ID pin of the mini-AB connector (Port 1) for
OTG applications.
DM
1
, DP
1
IO
Data lines for Port 1, which may serve as a USB Host, or OTG
port.
Pin/Signal
Name
PIN FUNCTION
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299