Kenwood TK-90, Руководство по обслуживанию

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TK-90
120
3. Semiconductor Data
3-1. Microprocessor: 3062LFGPUKBNA (IC1)
Pin No. Port Name I/O Function
1~3 P94~P92 O NC
4 BAUD I Baud rate selection
5 SQC I Squelch input
6 BYTE I 3.3V
7 CNVSS/(WCNV) I Not used
8 SSEL1 I Not used
9 P86 O NC
10 RESET/(WRST) I Reset input
11 XOUT O Main clock output
12 VSS - GND
13 XIN I Main clock input
14 VCC1 - VCC
15 NMI I Not used
16 INTRA I RTC interrupt input
17 HINT I DSP host port interrupt input
18 RXDINT I RXD interrupt input
19,20 P81,P80 O Not used
21 DINT O DSP interrupt output
22 DRST O DSP reset output
23~26 YOBI1~YOBI4 O NC
27 RTCL/EEPCL O RTC/EEPROM Clock
28 RTDT/EEPDT I/O RTC/EEPROM Data
29 WTXD I Not used
30 WRXD I Not used
31 WCLK I Not used
32 WBSY I Not used
33 TXD0 O Serial communications with main MCU
34 RXD0 I Serial communications with main MCU
35 RTS0 O Serial communications with main MCU
36 CTS0 I Serial communications with main MCU
37 HRDY I DSP wait signal
38 ALE O NC
39 HOLD/(WEPM) I Not used
40 HLDA O NC
41 BCLK O CPU clock output (TP)
42 RD O Read signal
43 BHE O Not used
44 WR/(WCE) O Write signal
45 HCS O DSP chip select
46,47 CS2,CS1 I Not used
48 SCS O SRAM chip select
49,50 A19,A18 O Address bus (OPEN)
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