Sony BRC-300 Service Manual page 209

INPUTS/OUTPUTS
D0 - D15 : DATA BUS
P10 - P17 : PORT 1
P20 - P27 : PORT 2
P30 - P35 : PORT 3
P50 - P53 : PORT 5
P60 - P65 : PORT 6
P80 - P85 : PORT 8
PA0 - PA7 : PORT A
PB0 - PB7 : PORT B
PC0 - PC7 : PORT C
PD0 - PD7 : PORT D
PE0 - PE7 : PORT E
PF0 - PF7 : PORT F
PG0 - PG6 : PORT G
PH0 - PH3 : PORT H
SCK0 - SCK4 : CLOCK
SCL0, SCL1 : SERIAL CLOCK
SDA0, SDA1 : SERIAL DATA
TIOCA0 - TIOCA5, : INPUT CAPTURE/OUTPUT COMPARE MATCH
TIOCB0 - TIOCB5
OTHER
NC : NO CONNECTION
BRC-300/300P
BRU-300/300P
MAX5184ETG+TG069 (MAXIM)
10-BIT D/A CONVERTER
—TOP VIEW—
INPUTS
CLK
CS
19 12
D0 - D9
20 11 DACEN
PD
21 10
REN
22 9
REFR
23 8
24 7 OUTPUTS
CREF
OUTN
OUTP
REFO
PD DACEN MODE OUTPUT SATE
0 0 SATNDBY A.GND
LAST STATE PRIOR TO
0 1 WAKE-UP
STANDBY MODE
x
1 SHUTDOWN
A.GND
PIN PIN
I/O SIGNAL I/O SIGNAL
NO. NO.
REN
1 — A.GND 7 I
2 — A.V 8 I D0
CC
3 I DACEN 9 I D1
4 I PD 10 I D2
CS
5 I 11 I D3
6 I CLK 12 I D4
7
REN
1.2 V REF
21
REFO
20
REFR
8
D0
9
D1
INPUT MSB OUTPUT
10
D2
LATCHES DECODE LATCHES
11
D3
12
D4
13
D5
14
D6
INPUT MSB OUTPUT
15
D7
LATCHES DECODE LATCHES
16
D8
17
D9
6
CLK
S-80828CLUA-B6NT2G (SEIKO INSTR)
VOLTAGE DETECTOR
—TOP VIEW—
1: OUT
2: V
CC
3: GND
1 2 3
2
V
CC
S
S
_
1
+
V
REF
S S
S
3
GND
: CLOCK
: CHIP SELECT
: DATA
: DAC ENABLE
: POWER-DOWN SELECT
: REFERENCE ENABLE
: REFERENCE
: REFERENCE
: NAGATIVE ANALOG OUTPUT
: POSITIVE ANALOG OUTPUT
: REFERENCE
0 : LOW LEVEL
1 : HIGH LEVEL
x
: DON'T CARE
PIN PIN
I/O SIGNAL I/O SIGNAL
NO. NO.
13 I D5 19 — D.GND
14 I D6 20 I REFR
15 I D7 21 O REFO
16 I D8 22 O CREF
17 I D9 23 O OUTP
18 — D.V 24 O OUTN
CC
_
CURRENT-
22
CREF
+
SOURCE ARRAY
23
DAC OUTP
24
SWITCHES
OUTN
OUT
IC
7-7