TMS320F2812 datasheet(18/170 Pages) TI

18 / 170 page

TMS320F2810, TMS320F2811, TMS320F2812

TMS320C2810, TMS320C2811, TMS320C2812

SPRS174S – APRIL 2001 – REVISED MARCH 2011

www.ti.com

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.

Table 2-2. Signal Descriptions(1)

PIN NO.

NAME

I/O/Z(2)

PU/PD(3)

DESCRIPTION

179-BALL

176-PIN

128-PIN

GHH/ZHH

PGF

PBK

XINTF SIGNALS (2812 ONLY)

XA[18]

158

–

O/Z

–

XA[17]

156

–

O/Z

–

XA[16]

152

–

O/Z

–

XA[15]

148

–

O/Z

–

XA[14]

A10

144

–

O/Z

–

XA[13]

E10

141

–

O/Z

–

XA[12]

C11

138

–

O/Z

–

XA[11]

A14

132

–

O/Z

–

XA[10]

C12

130

–

O/Z

–

XA[9]

D14

125

–

O/Z

–

19-bit XINTF Address Bus

XA[8]

E12

121

–

O/Z

–

XA[7]

F12

118

–

O/Z

–

XA[6]

G14

111

–

O/Z

–

XA[5]

H13

108

–

O/Z

–

XA[4]

J12

103

–

O/Z

–

XA[3]

M11

–

O/Z

–

XA[2]

N10

–

O/Z

–

XA[1]

–

O/Z

–

XA[0]

–

O/Z

–

XD[15]

147

–

I/O/Z

XD[14]

B11

139

–

I/O/Z

XD[13]

J10

–

I/O/Z

XD[12]

L14

–

I/O/Z

XD[11]

–

I/O/Z

XD[10]

–

I/O/Z

XD[9]

–

I/O/Z

XD[8]

–

I/O/Z

16-bit XINTF Data Bus

XD[7]

–

I/O/Z

XD[6]

–

I/O/Z

XD[5]

–

I/O/Z

XD[4]

–

I/O/Z

XD[3]

–

I/O/Z

XD[2]

–

I/O/Z

XD[1]

–

I/O/Z

XD[0]

–

I/O/Z

(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 Section 6.3, Electrical Characteristics

Over Recommended Operating Conditions. The pullups/pulldowns are enabled in boundary scan mode.

Introduction

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