PEDL60851C-02
1
Semiconductor
ML60851C
PIN DESCRIPTION
Pin
1,2
Symbol
D+, D-
Type
I/O
—
Description
USB data
6, 7
4, 5
XIN, XOUT
TEST14, 2
Pins for external crystal oscillator
Test pins (normally “L”)
Data bus (MSB)
I
13 to 16,
19 to 22
D15 to D18
AD7 to AD0
I/O
I/O
35 to 38,
41 to 44
Data bus (LSB)/address inputs
25 to 32
A7 to A0
CS
I
I
Address inputs
Chip select signal input pin. LOW active
8
9
Read signal input pin. LOW active
Write signal input pin. LOW active
Interrupt request signal output pin
DMA request output pin
I
RD
10
12
I
WR
O
INTR
34
33
23
24
11
O
I
DREQ
DACK
ALE
DMA acknowledge signal input pin
Address latch enable signal input pin
I
ADSEL
I
Address input mode select input pin. “H”: address/data multiplex
System reset signal input pin. LOW active.
I
RESET
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