參數(shù)資料
型號(hào)： 79RC32T355-150DH
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類(lèi)： 微控制器/微處理器
英文描述： IDT Interprise Integrated Communications Processor
中文描述： 32-BIT, 150 MHz, RISC PROCESSOR, PQFP208
封裝： 28 X 28 MM, 3.40 MM HEIGHT, PLASTIC, MO-143FA-1, QFP-208
文件頁(yè)數(shù)： 37/47頁(yè)
文件大?。?/td> 987K
代理商： 79RC32T355-150DH
37 of 47
May 25, 2004
IDT 79RC32355
Table 16 shows the pin numbering for the Standard EJTAG connector. All the even numbered pins are connected to ground. Multiplexing of pin
functions should be considered when connecting
EJTAG_TRST_N and EJTAG_PCST.
For details on using the JTAG connector, see the JTAG chapters in the RC32355 user reference manual.
AC Test Conditions
Figure 21 Output Loading for AC Timing
PIN
SIGNAL
RC32355 I/O
TERMINATION
1
1.
The value of the series resistor may depend on the actual printed circuit board layout situation.
2.
JTAG_TCK pull-up resistor is not required according to the JTAG (IEEE1149) standard. It is indicated here to prevent a floating CMOS input when the EJTAG connector is
unconnected.
1
EJTAG_TRST_N
Input
10 k
pull-down resistor. A pull-down resistor will hold the EJTAG controller in reset when not in use
if the EJTAG_TRST_N function is selected with the boot configuration vector. Refer to the User Man-
ual.
3
JTAG_TDI
Input
10 k
pull-up resistor
5
JTAG_TDO
Output
33
series resistor
7
JTAG_TMS
Input
10 k
pull-up resistor
9
JTAG_TCK
Input
10 k
pull-up resistor
2
11
System Reset
Input
10 k
pull-up resistor is used if it is combined with the system cold reset control, COLDRSTN.
13
EJTAG_PCST[0]
Output
33
series resistor
15
EJTAG_PCST[1]
Output
33
series resistor
17
EJTAG_PCST[2]
Output
33
series resistor
19
EJTAG_DCLK
Output
33
series resistor
21
Debug Boot
Input
This can be connected to the boot configuration vector to control debug boot mode if desired. Refer
to Table 2 on page 12 and the RC32355 user reference manual.
23
V
CC
I/O
Output
Used to sense the circuit board power. Must be connected to the VCC I/O supply of the circuit board.
Table 16 Pin Numbering of the JTAG and EJTAG Target Connector
1.5V
Parameter
Value
Units
Input pulse levels
0 to 3.0
V
Input rise/fall
3.5
ns
Input reference level
1.5
V
Output reference levels
1.5
V
AC test load
25
pF
RC32355
Output
.
50
50
Test
Point
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