Kenwood KD CMP 925 Service Manual
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Extracted text from Kenwood KD CMP 925 Service Manual (Ocr-read)
Page 10
KDC-MP925/W8027
MICROCOMPUTERS TERMINAL DESCRIPTION
10
Pin No. Pin Name l/O Description / Processing Operation
87 FL LATCH O Latch output to FL driver IC
88,89 NC - NC
90 REMO ON 0 Power supply control for remote control IC (H :ON, Hi-Z :OFF)
91 FL3.3V SW 0 FL3.3V control terminal (H :ON, Hi-Z :OFF)
92 FL+B SW 0 FL+B control terminal (H :ON, Hi-Z :OFF)
93 3.3V SW 0 3.3V control terminal (L :ON, Hi-Z :OFF)
94 NC - NC
95 OE O OE control for Flash ROM (L : DATA transmission, Hi-Z :Wait ready)
96 NC - NC
97 WE/WR O WRITE/READ control for Flash ROM (L :Writing, Hi-Z :Wait ready)
98 3.3V VDD AVR 3.3V
99 EVSS - GND
100 CE ROM 0 CE control tor ROM (L : DATA transmission, Hi-Z :Wait ready)
101 CE F/ROM 0 CE control tor Flash ROM (L :DATA transmission, Hi-Z :Wait ready)
102 FLASHROM CHECK 0 Writing condition check for Flash ROM (H :OK, L :NG)
103,104 NC - NC
105 GREEN LED 0 Select lor illumination (GREEN H :ON, L :OFF)
106 RED LED 0 Select tor illumination (RED H :ON, L : OFF)
107 DISP LED 0 DISP LED control (Normal H: ON, L : OFF)
108 BLACK DISP 0 Light up to DISP LED (H :ON, L : OFF)
109,1 10 NC - NC
111 SA RST 0 Reset for spectrum analyzer (H : Reset, L : Normal)
112 3.3V VDD - AVR 3.3V
1 13 EVSS - GND
1 14~1 17 NC - NC
118~123 A21 ~A16 0 Address bus
124 2.5V VDD - AVR 2.5V
125 VSS - GND
126~133 A15~A8 0 Address bus
134 3.3V VDD - AVR 3.3V
135 EVSS - GND
136~143 A7~A0 0 Address bus
144 D15 l/O External ROM data input/output terminal