參數(shù)資料
型號: DSPCOMMANDUM
英文描述: Universal Command Converter for DSP User's Manual
中文描述: 通用命令轉(zhuǎn)換為數(shù)字信號處理器用戶手冊
文件頁數(shù): 39/70頁
文件大?。?/td> 550K
代理商: DSPCOMMANDUM
Host Computer Hardware
Motorola
Functional Description
3-7
Figure 3-4. Target V
DD
System JTAG/OnCE Interface Connector
3.1.6 Multiple Target Connections
The basic JTAG connection comprises 5 pins, as illustrated in Figure 3-5.
Figure 3-5. JTAG Connections
Multiple target devices may be connected in series, allowing a single command converter
JTAG/OnCE connector to control multiple devices, as in Figure 3-6. Data flows from the
JTAG host, into each JTAG implementation through TDI, out through TDO and into TDI
in the next chip, eventually returning to the JTAG host.
TDI/DSI
TDO/DSO
TCK/DSCK
DR
CC_RESET
KEY (No Connect)
GND
1
2
3
4
5
6
7
8
9
10
vcc
DSP
RESET
PIN
TARGET
RESET
CIRCUIT
GND
VCC
GND
V
CC
10K
10K
10K
10K
10K
TOP VIEW
11
12
13
14
TARGET V
DD
DEZ
V
CC
10K
TMS0 (for JTAG devices)
TMS1 (for JTAG devices)
TRST (for JTAG devices)
(for JTAG devices)
AA1976
(Not used w/ JTAG)
DSP
TRST
PIN
vcc
10K
TDI
TDO
TCK
TMS
TRST
1
TARGET
1
IF PINNED OUT, REQUIRED ON DEVICE
PROCESSOR
AA1975
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