Signal Descriptions - Texas Instruments TMS320C2810 Data Manual

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2.4

Signal Descriptions

Table 2-2 specifies the signals on the F281x and C281x devices. All digital inputs are TTL-compatible. All
outputs are 3.3 V with CMOS levels. Inputs are not 5-V tolerant. A 100-µA (or 20-µA) pullup/pulldown is
used.
NAME
179-BALL
GHH/ZHH
XA[18]
XA[17]
XA[16]
XA[15]
XA[14]
XA[13]
XA[12]
XA[11]
XA[10]
XA[9]
XA[8]
XA[7]
XA[6]
XA[5]
XA[4]
XA[3]
XA[2]
XA[1]
XA[0]
XD[15]
XD[14]
XD[13]
XD[12]
XD[11]
XD[10]
XD[9]
XD[8]
XD[7]
XD[6]
XD[5]
XD[4]
XD[3]
XD[2]
XD[1]
XD[0]
(1) Typical drive strength of the output buffer for all pins is 4 mA except for TDO, XCLKOUT, XF, XINTF, EMU0, and EMU1 pins, which are
8 mA.
(2) I = Input, O = Output, Z = High impedance
(3) PU = pin has internal pullup; PD = pin has internal pulldown. Pullup/pulldown strength is given in
Over Recommended Operating Conditions. The pullups/pulldowns are enabled in boundary scan mode.
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Table 2-2. Signal Descriptions
PIN NO.
176-PIN 128-PIN
PGF PBK
XINTF SIGNALS (2812 ONLY)
D7 158 –
B7 156 –
A8 152 –
B9 148 –
A10 144 –
E10 141 –
C11 138 –
A14 132 –
C12 130 –
D14 125 –
E12 121 –
F12 118 –
G14 111 –
H13 108 –
J12 103 –
M11 85 –
N10 80 –
M2 43 –
G5 18 –
A9 147 –
B11 139 –
J10 97 –
L14 96 –
N9 74 –
L9 73 –
M8 68 –
P7 65 –
L5 54 –
L3 39 –
J5 36 –
K3 33 –
J3 30 –
H5 27 –
H3 24 –
G3 21 –
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TMS320F2810 TMS320F2811 TMS320F2812 TMS320C2810 TMS320C2811 TMS320C2812
TMS320F2810, TMS320F2811, TMS320F2812
TMS320C2810, TMS320C2811, TMS320C2812
SPRS174T – APRIL 2001 – REVISED MAY 2012
(1)
(2) (3)
I/O/Z PU/PD
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z – 19-bit XINTF Address Bus
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
O/Z –
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
16-bit XINTF Data Bus
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
I/O/Z PU
Section
DESCRIPTION
6.3, Electrical Characteristics
Introduction 17