DU1A
27
PIN
No.
NAME
I/O
FUNCTION
PIN
No.
NAME
I/O
FUNCTION
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
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
65
66
67
68
69
70
71
72
NC
NC
Vss
DVDD
A10
HD7
A11
A12
A13
A14
A15
NC
HAS
Vss
NC
CVDD
HCS
HR/W
READY
PS
DS
IS
R/W
MSTRB
IOSTRB
MSC
XF
HOLDA
IAQ
HOLD
BIO
MP/MC
DVDD
Vss
NC
NC
NC
NC
HCNTL0
Vss
BCLKR0
BCLKR1
BFSR0
BFSR1
BDR0
HCNTL1
BDR1
BCLKX0
BCLKX1
Vss
HINT/TOUT1
CVDD
BFSX0
BFSX1
HRDY
DVDD
Vss
HD0
BDX0
BDX1
IACK
HBIL
NMI
INT0
INT1
INT2
INT3
CVDD
HD1
Vss
NC
NC
O
I/O
O
O
O
O
O
I
I
I
I
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I/O
I/O
I/O
I/O
I
I
I
I/O
I/O
O
I/O
I/O
O
I/O
O
O
O
I
I
I
I
I
I
I/O
Power supply 1.8V
Address bus
Parallel bidirectional data bus.
Address bus
Address strobe.
Ground
Power supply 3.3V
Chip Select.
Read/write.
Data ready.
Data, program, and I/O space select signals.
Read/write signal.
Memory strobe signal.
I/O strobe signal.
Microstate complete.
External flog output (latched software-programmable signal).
Hold acknawledge.
Instraction acquisition signal.
Branch control.
Microprocessor/microcomputer mode select.
Power supply 1.8V
Ground
Control.
Ground
Receive clock input.
Receive clock input.
Frome synchronization pulse for receive input.
Frome synchronization pulse for receive input.
Serial deta receive input
Control.
Serial deta receive input
Transmit clock.
Transmit clock.
Ground
Host interrupt/Timer 1 output.
Power supply 3.3V
Frome synchronization pulse for transmitinput/output.
Frome synchronization pulse for transmitinput/output.
Ready.
Power supply 1.8V
Ground
Parallel bidirectional data bus.
Signal data transmit output.
Signal data transmit output.
Interrupt acknowledge signal.
Byte identification.
Nonmaskable interrupt.
Interrupt acknowledge signal.
Power supply 3.3V
Parallel bidirectional data bus.
Ground
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
NC
NC
DVDD
Vss
CLKMD1
CLKMD2
CLKMD3
NC
HD2
TOUT0
EMU0
EMU1/OFF
TDO
TDI
TRST
TCK
TMS
NC
CVDD
HPIENA
Vss
CLKOUT
HD3
X1
X2/CLKIN
RS
D0
D1
D2
D3
D4
D5
A16
Vss
A17
A18
A19
NC
Vss
DVDD
D6
D7
D8
D9
D10
D11
D12
HD4
D13
D14
D15
HD5
CVDD
NC
HDS1
Vss
HDS2
DVDD
A0
A1
A2
A3
HD6
A4
A5
A6
A7
A8
A9
CVDD
NC
NC
I
I
I
I/O
O
I/O
I/O
O
I
I
I
I
I
O
I/O
O
I
I
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
O
O
O
O
I/O
O
O
O
O
O
O
Power supply 1.8V
Ground
Clock mode select signals.
Parallel bidirectional data bus.
Timer 0 output.
Emulator 0 pin.
Emulator 1 pin/disable outputs.
Testdata output
Test data input pin with interral pullup device.
Test reset.
Test clock.
Test mode output
Power supply 3.3V
HPI module select.
Ground
Master clock output signal.
Parallel bidirectional data bus.
Output pin from the internal oscillator for the crystal.
Oscillator input. This is the input to the on-chip oscillator.
Reset.
(LSB)
Data bus
Address bus
Ground
Address bus
(MSB)
Ground
Power supply 1.8V
Data bus
(MSB)
Parallel bidirectional data bus.
Power supply 1.8V
Data strobe.
Ground
Data strobe.
Power supply 3.3V
(LSB)
Address bus
Parallel bidirectional data bus.
Address bus
Power supply 1.8V
TMS320VC5402 (XW685A00) DSP (Digital Signal Processor)
