Motorola ASTRO Digital Spectra Plus - Page 95

6881076C25-E September 5, 2008
Theory of Operation: ASTRO Spectra VOCON Board 3-35
G7 MICEN J501-45
J9 B+ CNTL U409-2
Q206B
E7 VIP OUT1 J501-22
K7 CS3B EMC MAKEUP* J801-12
G6 CS2B RAM SEL* U211-2
J7 CS1B HEN* U405-E8
G8 DISP EN*/LATCH SEL* J601-4
H9 RED LED N/C
E8 GRN LED N/C
E2 IRQ* U204-E7
Table 3-8. VOCON U405 (DSP)
U405
Pin #
Description To/From
C1 PS* U404-6 U406-D8
C3 DS*
A3 RD* U404-32 U406-F8
C4 WR* U404-7 U406-G10
B3 X/Y*
A4 BR* R411
B4 BG*/BS* R432
H10 MODA/IRQA* U204-G4 U406-F10
H9 MODB/IRQB* U406-F9
J8 XTAL R415
K9 EXTAL U406-G9 (DCLK)
A2 STO U406-H1
C5 SRO U406-L3
B6 SCK U406-G3
B2 SC2 U406-H2
Table 3-7. U206 (SLIC) (Continued)
U206
Pin #
Description To/From