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Philips Semiconductors
User Manual of High-End RDS/EON
Car Radio System CCR612 (V0.3)
Application Note
96029
4 CCR612S PINNING AND INTERFACING
CCR612S is accommodated in a P83CE528 microcontroller in a 44-pins Quad Flat Package. It is
manufactured in CMOS technology and is a derivative of the 80C51 microcontroller family. It contains 32
kbytes of ROM and 512 bytes of RAM.
For electrical characteristics of I/O pins, see the P83CE528 data sheet.
4.1 Pinning overview
When the radio is equipped with a detachable keyboard, pins KEYB5_FSDA & KEYB6_FSCL (pins 23 &
24) are used as I
2
C-bus lines to the detachable keyboard. Otherwise pin 23 and pin 24 are used as scan
lines for the fixed keyboard.
1
2
3
4
5
6
7
8
9
10
11
12
14
13
15
16
17
18
19
20
21
22
23
25
24
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
P1.5
P1.6
RST
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL2
XTAL1
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
PSEN
ALE
EA
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
Vdd
P1.0
P1.1
P1.2
P1.3
P1.4
EXSTAT
SCL
SDA
P1.7
RESET
CMTL
CDC_bus
BLPTST
CDOLBY
KEYB5_FSDA
PSEN
ALE
EA
ON
TA
SEL1_PAUSE
DIAG
Vdd
CDIR
CINDRV
IGN
CPLYWD
LOUD
AUMUTE
CENABL
XTAL2
XTAL1
SEL0_SOLND
KEYB0
Vss
Vss
KEYB6_FSCL
RDSDAT
RDSCLK
Vss
P3.0
Vss
VssVss
Vss
Vss
Vdd
Vdd
KEYB1
KEYB2
KEYB4
HOLD
OPTROW
(P83CE528)
CCR612S
CAMS
PLL_LOCK
KEYB3
Figure 4 Pinning of CCR612S
In case of conventional audio sound control circuitry, pin SEL0_SOLND and SEL1_PAUSE are used to
select between the various audio sources (radio, CD-changer, cassette, external output) by means of a
dual 4 channel analogue multiplexer (e.g. HEF4052B). If a TEA632x is installed these pins can be used
for respectively solenoid control and AMS pause input control.
30