Table 3-7. U206 (Slic) - Motorola ASTRO Digital Spectra Plus Service Manual
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Also See for ASTRO Digital Spectra Plus:
- Detailed service manual (442 pages) ,
- Service manual (248 pages) ,
- User manual (174 pages)
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Theory of Operation: ASTRO Spectra VOCON Board
U204
Pin #
G7
F7
H8
F6
H7
B6
A5
E8
E7
A6
A7
U206
Pin #
F3
F4
F2
H1
G3
H2
H3
K2
B4
D5
A5
B6
6881076C25-D
Table 3-6. U204 (MCU) (Continued)
Description
PG4 ADSIC RST*
PG3 ADSIC SEL*
PG2 DSP RST*
PG1 ROSC/PSC CE*
PG0 SYN SEL*
R/W*
ECLK (1.8432 MHz)
XIRQ*
IRQ*
EXTAL 7.3728 MHz
XTAL
Table 3-7. U206 (SLIC)
Description
PH0
PH1
PH2
PH3
PH4
PH5 INT PTT*
PH6 EMC REQ
PH7 LOCK DET*
PJ0 MOB IRQ*
PJ1 VIP IN2
RS232 DATA OUT
PJ3 CTSOUT*
To/From
U406-A8
U406-B8
U405-G9
J501-12
J501-11
U405-D9
U206-B3
U206-A4
R233
U206-E2
Y201
Q205C
To/From
N/C
N/C
N/C
N/C
N/C
J501-30
U206-H2
J801-11
J501-10
U302-41
CR502
J501-26
J501-25
J501-43
J501-5
October 28, 2002
3-33
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