DME32
17
PIN
NO.
I/O
FUNCTION
NAME
PIN
NO.
I/O
FUNCTION
NAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DATA0
DATA1
DATA2
DATA3
GND
DATA4
DATA5
DATA6
DATA7
ALE
CS_N
SUSPEND
CLKOUT
INT_N
I/O
I/O
I/O
I/O
-
I/O
I/O
I/O
I/O
I
I
I/O
O
O
Bit 0 of bi-directional data.
Bit 1 of bi-directional data.
Bit 2 of bi-directional data.
Bit 3 of bi-directional data.
Ground
Bit 4 of bi-directional data.
Bit 5 of bi-directional data.
Bit 6 of bi-directional data.
Bit 7 of bi-directional data.
Address Latch Enable.
Chip Select (Active Low).
Device is in Suspend state.
Programmable Output Clock (slew-rate controlled)
interrupt (Active Low)
15
16
17
18
19
20
21
22
23
24
25
26
27
28
RD_N
WR_N
DMREQ
DMACK_N
EOT_N
RESET_N
GL_N
XTAL1
XTAL2
Vcc
D-
D+
Vout3.3
A0
I
I
O
I
I
I
O
I
O
-
-
-
-
I
Read Strobe (Active Low)
Write Strobe (Active Low)
DMA Request.
DMA Acknowledge (Active Low).
End of DMA Transfer (Active Low).
Reset (Active Low and asynchronous).
Built-in Power-On-Reset circuit
GoodLink LED indicator (Active Low)
Crystal Connection 1 (6 MHz)
Crystal Connection 2 (6 MHz)
Voltage supply (4.0-5.5 V)
USB D-data line
USB D+data line
3.3 V regulated output.
Address bit. A0=1 selects command
instruction; A0=0 selects the data phase.
PDIUSBD12PW (XW583A00) USB Interface
PNR: IC102
PIN
NO.
I/O
FUNCTION
NAME
PIN
NO.
I/O
FUNCTION
NAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
/DSRA
/CTSA
/DTRA
VCC
/RTSA
INTA
/CSA
TXA
/LOW
TXB
/CSB
INTB
/RTSB
GND
/DTRB
/CTSB
/DSRB
/CDB
/RIB
RXB
VCC
A2
A1
A0
XTAL1
XTAL2
RESET
GND
RXC
/RIC
/CDC
/DSRC
I
I
O
I
O
O
I
O
I
O
I
O
O
O
I
I
I
I
I
I
I
I
I
I
O
I
I
I
I
I
Data set ready (active low)
Clear to send (active low)
Data terminal ready (active low)
Power supply inputs
Request to send (active low)
Interrupt A (active high)
Chip select
Transmit data
Write strobe
Transmit data
Chip select
Interrupt B (active high)
Request to send (active low)
Signal and power ground
Data terminal ready (active low)
Clear to send (active low)
Data set ready (active low)
Carrier detect (active low)
Ring indicator (active low)
Receive data input RX B
Power supply inputs
Address bus
Crystal or External clock input
Output of the crystal oscillator or buffered clock
Reset
Signal and power ground
Receive data input RX C
Ring indicator (active low)
Carrier detect (active low)
Data set ready (active low)
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
/CTSC
/DTRC
VCC
/RTSC
INTC
/CSC
TXC
/IOR
TXD
/CSD
INTD
/RTSD
GND
/DTRD
/CTSD
/DSRD
/CDD
/RID
RXD
VCC
D0
D1
D2
D3
D4
D5
D6
D7
GND
RXA
/RIA
/CDA
I
O
I
O
O
I
O
I
O
I
O
O
O
I
I
I
I
I
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
Clear to send (active low)
Data terminal ready (active low)
Power supply inputs
Request to send (active low)
Interrupt C (active high)
Chip select
Transmit data
Read strobe
Transmit data
Chip select
Interrupt D (active high)
Request to send (active low)
Signal and power ground
Data terminal ready (active low)
Clear to send (active low)
Data set ready (active low)
Carrier detect (active low)
Ring indicator (active low)
Receive data input RX D
Power supply inputs
Data bus
Signal and power ground
Receive data input RX A
Ring indicator (active low)
Carrier detect (active low)
ST16C554DCQ64 (XW934A00) UART
(Universal asynchronous receiver and transmitter)
MAIN: IC18
