GX15
6 – 1
CONFIDENTIAL
Phone
GX15
Service Manual
Service Manual
Market
E
CHAPTER 6.
OTHERS
[1] Function table of IC
IC101 VHI-1L (YMU762C): SOUND
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No.
Terminal name
Input/Output
Description of terminal
1
CLKI
Input
Clock input terminal
2*
LED (NC)
Output
External LED control terminal (Not used)
3
/IRQ
Output
Interrupt output terminal
4
/RST
Input
Hardware reset input terminal
5*
NC
–
Not used
6
PLLC
–
Built-in PLL capacitor terminal
7
VDD
–
Power supply (Typ + 3.0 V)
8
VSS
–
Earth
9
VREF
–
Analogue reference voltage terminal
10
HPOUT-L/MONO
Output
Headphone output L-ch
11
HPOUT-R
Output
Headphone output R-ch
12
EQ1
–
Equaliser terminal 1
13*
EQ2 (NC)
–
Equaliser terminal 2 (Not used)
14*
EQ3 (NC)
–
Equaliser terminal 3 (Not used)
15*
SPVDD (NC)
–
Analogue power supply for speaker amplifier (Typ + 3.6 V) (Not used)
16*
SPVSS (NC)
–
Analogue earth for speaker amplifier (Not used)
17*
SPOUT1 (NC)
Output
Speaker terminal 1 (Not used)
18*
SPOUT2 (NC)
Output
Speaker terminal 2 (Not used)
19
MTR
Output
External motor control terminal
20
D7
Input/Output
CPU I/F data bus 7
21
D6
Input/Output
CPU I/F data bus 6
22
D5
Input/Output
CPU I/F data bus 5
23
D4
Input/Output
CPU I/F data bus 4
24
D3
Input/Output
CPU I/F data bus 3
25
D2
Input/Output
CPU I/F data bus 2
26
D1
Input/Output
CPU I/F data bus 1
27
D0
Input/Output
CPU I/F data bus 0
28
/WR
Input
CPU I/F write enable
29
/CS
Input
CPU I/F chip select input
30
A0
Input
CPU I/F address signal
31
/RD
Input
CPU I/F read enable
32
IOVDD
–
Power supply for terminal
PLL
Timing Generator
FiFO
64 byte
FM +
Wave Table
Synthesiser
PCM/ADPCM
Play back
TIMER
Soft IRQ
LED control
Vibrator control
D0~D7
/RD
/WR
A0
/CS
/RST
/RST
16-bit
DAC
R-ch
L-ch
VREF
EQ
Vol
Select
Mono
HP
Vol R
R-ch
L-ch
HPOUT-R
CLKI
Control
register
S
RAM/ROM
PLLC
VSS
VDD
EQ1
EQ2
EQ3
SPOUT1
SPOUT2
Analogue power supply
for speaker amplifier
SPVDD
SPVSS
HPOUT-L/
MONO
11
HP
Vol L
VREF
VREF
1
Vol
Vol
SP
Vol
16 15
9
12
13
14
17
18
10
6
IOVDD
32
8
7
4
29
30
28
31
20 ~ 27
NC 5
/IRQ 3
LED 2
MTR 19
+ -
Sequencer
Buffer
FiFO
512 byte
Intermediate
register
Interface
register
CPU
interface
Summary of Contents for GX15
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Page 8: ...GX15 1 5 CONFIDENTIAL ...
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