BU9457KV Datasheet, PDF (3/5 Pages) Rohm – USB host MP3 Decoder LSI

◇Description of Terminals
No.
Name
1
RESETX
2
SEL_SLAVE
3
SEL_MP3
4
SEL_DOUT
5
SEL_VOL
6
SEL_APLAY
7
SEL_UTPKT
8
TEST1
9
TEST2
10
KEY_ROW1/MCHNG
11
KEY_ROW2/BUSY
12
KEY_ROW3/SCL
13
KEY_ROW4/SDA
14
KEY_COL1/A0
15
KEY_COL2/A1
16
KEY_COL3/SEL_SMAN
17
TEST3
18
DVDDIO
19
SD_CON
20
SD_DO
21
SD_CLK
22
SD_DI
23
SD_CS
24
DVSS
25
TEST4
26
TEST5/CLKTOU12
27
DVDD_M2
28
TEST6
29
TEST7
30
TEST8
31
ATEST1
32
AVDDC
33
USB_DM
34
USB_DP
35
AVSSC
36
REXTI
37
VOREFI
38
VDD_PLL
39
TEST_PLL
40
XIN_PLL
41
XOUT_PLL
42
VSS_PLL
43
DAVSS
44
RDACO
45
VCDACO
46
LDACO
47
DAVDD
48
AMUTE
49
LED_ERROR/TEST9
50
LED_PLAY/TEST10
51
LED_PSD/TEST11
52
LED_PUSB/TEST12
53
LED_ACCESS
54
LED_RANDOM
55
LED_REPEAT
56
TEST13
57
DVDD_M1
58
TEST14
59
TEST15
60
TEST16
61
TEST17
62
DVSS
63
TMODE
64
DVDDIO
3/4
I/O
Description of terminals
I
System reset terminal
I
Slave mode selection（H：Stand Alone mode, L：Slave mode）
I
MPEG Audio Layer selection（H：Only MP3 is playback, L：MP1, MP2 and MP3 can be playback）
I
Digital Audio out selection（H：Disable、L：Enable）
I
Volume operation selection（H：Volume+- Effective, L：VOL+-Inavalidity）
I
At device(USB,SD) connection, Auto Play mode selection(H:It stop, L:It playback)
I
USB test packet output selection（H：Normal operation、L：Test packet output）
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
I/O
[KEY_ROW1]KEY Matrix terminal, [MCHNG]Music change flag terminal
I/O
[KEY_ROW2]KEY Matrix terminal, [BUSY]Busy flag terminal
I
[KEY_ROW3]KEY Matrix terminal, [SCL]I²C I/F clock terminal
I/O
[KEY_ROW4]KEY Matrix terminal, [SDA]I²C I/F data terminal
I/O
[KEY_COL1]KEY Matrix terminal, [A0]I²C Slave address selection
I/O
[KEY_COL2]KEY Matrix terminal, [A1]I²C Slave address selection
I/O
[KEY_COL3] KEY Matrix terminal, [SEL_SMAN]Manual mode selection（H：Auto, L：Manual）
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
－
IO Power supply(VDD1) terminal
I
SD card Connect terminal
I
SD card Data In terminal
O
SD card Clock terminal
O
SD card Data Out terminal
O
SD card Chip select terminal
－
GND terminal
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
O
[TEST5]Pull-up to VDD1 system power supply terminal(TEST PIN),[CLKOUT12]12MHz clock output terminal
－
CORE Power supply(VDD2) monitor terminal. Connect to 57PIN.
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
O
USB TEST terminal(TEST PIN)
－
USB Power supply(VDD1)terminal
I/O
USB D－I/O terminal
I/O
USB D+ I/Oterminal
－
USB GND terminal
O
USB bias resistor(12kΩ) connecting terminal
O
USB TEST terminal(TEST PIN)
－
PLL Power supply(VDD1) terminal
I
PLL TEST terminal(TEST PIN)
I
X'tal(16.9344MHz) connecting input terminal
O
X'tal(16.9344MHz) connecting outpu terminal
－
PLL GND terminal
－
Audio DAC GND terminal
O
Audio DAC Rch Line output terminal
O
Audio DAC Reference voltage output teminal
O
Audio DAC Lch Line output terminal
－
Audio DAC Power supply(VDD1) terminal
O
Audio Mute output terminal（H：MUTE OFF, L：MUTE ON）
O
[LED]Lighting output terminal at ERROR, [TEST9]Pull-up to VDD1 system power supply terminal(TEST PIN)
O
[LED]Lighting output terminal at PLAY, [TEST10]Pull-up to VDD1 system power supply terminal(TEST PIN)
O
[LED]Lighting output terminal at PLAY for SD card, [TEST11]Pull-up to VDD1 system power supply
terminal(TEST PIN)
O
[LED]Lighting output terminal at PLAY for USB memory, [TEST12] Pull-up to VDD1 system power supply
terminal(TEST PIN)
O
[LED]Lighting output terminal when memory is being accessed,[LRCK]Digital Audio channel clock or SPDIF
output terminal
O
[LED]Lighting output terminal at PLAY for RANDOM, [BCK]Digital Audio bit clock output terminal
O
[LED]Lighting output terminal at PLAY for REPEAT, [DATA]Digital Audio data output terminal
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
－
CORE Power supply(VDD2) monitor terminal, Connect to bypass condenser
I
Connect to GND(TEST PIN)
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
I
Pull-up to VDD1 system power supply terminal(TEST PIN)
－
GND terminal
I
Connect to GND(TEST PIN)
－
IO Power supply(VDD1) terminal
REV. B