ITP700 Debug Port Design Guide

ITP700 Debug Port Design Guide 45

4 ITP700 LVDPA Specifications

4.1 ITP700 LVDPA Signal Descriptions

The signals used by the ITP700 LVDPA are divided into three categories: system, JTAG, and

execution. The system signal group indicates the access state of the entire system. The JTAG

signal group indicates the IEEE 1149.1 control signals. The execution signal group contains the

reset and run control signals used to coordinate debug activities. The signals in the execution

group are system bus signals and are recovered on BCLK. The signals in the JTAG group can

operate up to 16 MHz.

Figure 13. ITP LVPDA Debug Port Pinout (Top View)

1 GND

3 BPM[0]#

5 BPM[1]#

7 BPM[2]#

9 BPM[3]#

11 BPM[4]#

13 BPM[5]#

15 RESET#

17 FBO

19 BCLKp

21 BCLKn

23 BPM5DR#

25 GND

DBA# 4

DBR# 6

GND 8

TDI 10

TMS 12

TRST# 14

TCK 16

FBI 18

GND 20

PWR 22

TDO 24

GND 2

NOTES:

1. All execution signals, BCLK(p/n), and all JTAG signals must be simulated and routed with care. See the

appropriate generic layout and processor specific chapters for details.

2. The system clock of the processor may reference BCLK[1:0] where BCLK0 is the rising edge for the

beginning of any transaction and BCLK1 as the falling edge. The ITP uses BCLK[p/n] where BCLKp is

the rising edge and BCLKn is the falling edge for the beginning of any transaction. All routing Rules for

the BCLK signals do not change.