參數(shù)資料
型號(hào): LH79533
英文描述: ARM RISC CORE ASSPs ARM7TDMI
中文描述: ARM的RISC核心專用標(biāo)準(zhǔn)的ARM7TDMI
文件頁(yè)數(shù): 7/39頁(yè)
文件大?。?/td> 296K
代理商: LH79533
System-on-Chip
LH79520
Preliminary Data Sheet
8/21/02
7
52
53
54
56
57
58
59
60
34
35
41
42
43
44
50
51
PG7
PG6
PG5
PG4
PG3
PG2
PG1
PG0
PH7
PH6
PH5
PH4
PH3
PH2
PH1
PH0
Input/Output
General Purpose I/O Signals - Port G
1
Input/Output
General Purpose I/O Signals - Port H
1
COUNTER/TIMER (C/T)
Counter/Timer Output
RESET, CLOCK, AND POWER CONTROLLER (RCPC)
Input
Reset Input
Output
Reset Output
Input
External Interrupt Input
Input
External Interrupt Input
Input
External Interrupt Input
Input
External Interrupt Input
Input
External Interrupt Input
Input
External Interrupt Input
Input
External Interrupt Input
Input
External Interrupt Input
Input
Crystal Input
Output
Crystal Output
Input
32.768 kHz Crystal Oscillator Input
Output
32.768 kHz Crystal Oscillator Output
Input
External Clock Select
Input
External Clock Input (if CLKINSEL = HIGH at reset)
External Clock Enable
(if CLKINSEL = LOW at reset, then this pin functions as PF1)
Output
Clock Out (selectable from the internal bus clock or 32.768)
Input
External UART Clock Input (with CLKSEL = LOW)
TEST INTERFACE
Input
JTAG Test Reset Input
Input
JTAG Test Mode Select Input
Input
JTAG Test Clock Input
Input
JTAG Test Serial Data Input
Output
JTAG Test Data Serial Output
Input
Tie LOW for Normal Operation (has internal pull-down).
JTAG Debug Enable: Tie LOW for Normal Operation; pull HIGH to
enable JTAG Debugging (has internal pull-down).
Input
Tie HIGH for Normal Operation (has internal pull-up).
145
CTOUT1B
Output
1
96
97
114
115
144
150
151
152
153
155
93
94
89
90
88
98
nRESETIN
nRESETOUT
INT7
INT6
INT5
INT4
INT3
INT2
INT1
INT0
XTALIN
XTALOUT
XTAL32IN
XTAL32OUT
CLKINSEL
CLKIN
1
1
1, 3
1
1
1
1
1
1
99
CLKEN
Output
1
156
98
CLKOUT
UARTCLK
1
1
174
170
173
172
171
175
nTRST
TMS
TCLK
TDI
TDO
TEST1
176
TEST2
Input
1
nTSTA
Table 1. LH79520 Signal Descriptions (Cont’d)
PIN NO.
SIGNAL NAME
TYPE
DESCRIPTION
NOTES
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