User Guide

PAMS
Technical Documentation
NHD–4
Schematics/Layouts & Pinouts
Page 5–5
Original 11/97
MCU (D706)
MCU
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41 42 43 44 45 46 47 48 49 50
76
77
78
79
80
51 53 54 55 52 56 57 58 59 60
61
62
63
64
65
66
67
69
70
71
73
74
75
68
72
NC NC
NC
WR Vcc
MD0 MD2
STBY
RES NMI
Vss
D0 D1 D2 D3 D4 D5 D6 D7
MD1
RD
A0
A1
A2
A3
A4
A5
A6
A7
Vss
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
AVcc AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0 AVss FTOA1 FTOB3/FTCI3 FTOB2/FTCI2 FTOP1/FTCI1 FTI2 FTI1 TMCI Vcc A19
AS
TMO
IRQ1
IRQ0
WAIT
BREQ
BACK
E
NC
Vss
XTAL
EXTAL
Vref
RXD1
TXD1
PW3
PW2
PW1
FTOA3
FTOA2
5 Power VL1
12 Ground
29 Ground
6 Ground
7 Ground
8 Connected to VL1
2 No Connection
1 No Connection
10 XSYS_RESET : A low input causes chip to reset
11 MCU Non Maskable Interrupt
13–20 MCUDA An 8–bit input/output port
21–28 MCUAD An 8–bit input/output port
41 MCUDA
42 Power VL1
43 XPWROFF 8–bit Timer Clock input? ? ? ?
44 TEMP1–EN Power Amp temperature
47 CALL LED On when phone is ringing / silent alarm
48 CODEC_CLK
49 CODEC_DO MCU data write to Codec
50 CODEC_DI MCU data read from Codec
51 Ground
52 VBATDET
53 VCHRGMON
54 HOOK_RXD2 Accessory &
55 BTEMP Battery temparature monitoring
56 RFTEMP 1 for PA , 2 for VCTCXO
57 BTYPE Battery type and size
58 RSSI Amps received signal strenght indicator
59 JCONN External audio input from accescories or external
handsfree microphone
60 VREF
3 MCUREAD : Goes Low to indicate that the
CPU is reading external address
4 MCU_WR : Goes Low to indicate that the
CPU is writing external address
45 TEMP2_EN VCTCXO temperature
46 No Connection
61 BACKLIGHT Keypad backlight on
62 XCODEC_CS Codec chip select
63 PHFS_TXD2 Power Hans Free / Flash data
64 HOOK_RXD2 Accessory on/off / Flash data
65 Vibra battery controlling
66 MBUS OUT Prosessor monitores outsend data
67 MBUSDET Mbus monitoring during sleepmode
68 No Connection
69 MCU_CLK Clock 15.36 MHz
70 No Connection
71 Ground
72 No Connection
73 No Connection
74 VAHS provides power to Headset
75 5VOFF to 4.7V Regulator (D500)
76 VCHRGPWR controls charging current
77 MCU_INTO
78 No Connection
79 VOLTLIM for future use based on charging
80 XMCU_AS
9 Connected to VL1
30–41 MCUAD An 8–bit input/output port