MB86342B Datasheet, PDF (3/19 Pages) Fujitsu Component Limited. – Dolby Digital (AC-3) Decoder LSI

MB86342B
s PIN DESCRIPTION
Pin No.
Pin name I/O
Function
5
MCLK1
I Clock input
6
MCLK2
I/O Clock input/output
1
XRST
I Reset signal input
8
SCKO
O System clock output
12
MS
I
Master/Slave select input
L: Master (X’tal) H:Slave (external clock)
16
SYNC
I Synchronous/Asynchronous select input
2
EXTIN
I System clock input (384fs)
13, 14
FS1, FS2
I Sampling frequency switching signal input
7
KFSIO
I/O Audio input/output clock (384fs)
9
PM
I Test pin (usually clipped to GND)
10
PSTOP
I PLL and crystal oscillator control signal
11
EXLOCK
I Lock signal input of EXTIN
41
HCLK
I Clock input for serial input-data of host interface
43
HDIN
I Serial data input of host interface
44
HDOUT
O Serial data output of host interface
42
HCS
I Chip-select signal input of host interface
45
BST
I Usually clipped to GND
30 to 32, 35 to 39
GP0 to GP7
I/O Input/output of 8-bit general port data
17
LRCKI1
I/O Sampling clock input/output for audio interface serial data
18
BCKI1
I/O Bit clock input/output for audio interface serial data
20
LRCKI2
I Sampling clock input for audio interface serial data
21
BCKI2
I Bit clock input for audio interface serial data
19, 22
SD1, SD2
I Serial data input of audio interface
23
LRCKO
O Sampling clock output for audio interface serial data
24
BCKO
O Bit clock output for audio interface serial data
25 to 27
SDO1 to SDO3 O Serial data output of audio interface
46
MOD
I Bus-mode control signal input
47
CS
O Chip-select signal output for external SRAM interface
48
WE
O Write enable signal output for external SRAM interface
49 to 52, 55 to 64, 66, 67 A00 to A15
O Address data output of external SRAM interface
68 to 77,80 to 82
85 to 89, 91, 92
D00 to D19
I/O Data input/output of external SRAM interface
93
ICCLK
O Clock output for emulator
94
ICBRK
I External break control signal input for emulator
95, 96
ICD0, ICD1
I/O Input/output signal for data/address of emulator
97 to 99
ICS0 to ICS2
O Status signal output for emulator
3