Figure 8-48. Top Control And Jtag Circuit - Motorola APX 3000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Main Board Block: 700–800 MHz (84012501002)
V_EXT_1.85
JTAG<11..0>
IO
8 OMAP_TDO
CPLD_TDO
7
6 RTCK
TCK_CONN_BUFFERED_B
5
10 CPLD_TCK
4 NTRST
OMAP_TMS_BUFFERED
3
TDI_BUFFERED
2
11 CPLD_TDI_BUFFERED
9 CPLD_TMS
1 NEMU0
0 NEMU1
V_EXT_1.85
VCC VCC
GND GND
C2104
U2102 0.1UF
U2101
NC7WZ17 NC7WZ17
12
J1
ON_OFF_SWITCH
JTAG
F_VREF_1.875V
V_EXT_1.85
TEST_POINT
DNP
R2116 R2117 R2120
10K 10K 10K
R2197
0
OMAP_TDO_CON
R2198
0 CPLD_TDO_CON
R2199
0
RTCK_CON
4 3 TCK_CON
R2109 10
R2110 22 U2101
NC7WZ17
4 3 TMS_CON
R2111 10
U2102
NC7WZ17
R2113
10
6 1 TDI_CON
U2101
NC7WZ17
R2114
22
R2115
10
CPLD_TMS_CON
6 1
U2102
NC7WZ17
R2107 R2118
V_EXT_1.85
1K 10K
C2114
0.1UF
TOP_BUTTON
14
C2115
D2101
RSB6 100PF
USER BUTTON AND SWITCHES
J1
FREQ KNOB
TOP_BUTTON
OUT
ON_OFF_SWITCH
OUT
REMOVED SECURE SW
NEED TO ADD TOGGLE/FREQ SW

Figure 8-48. Top Control and JTAG Circuit

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