參數(shù)資料
型號(hào): D6571E
廠商: Electronic Theatre Controls, Inc.
英文描述: Chip for an All-Digital Telephone Answering Machine with Flash Memory Interface
中文描述: 芯片的全數(shù)字電話應(yīng)答機(jī)與快閃記憶體介面
文件頁(yè)數(shù): 7/117頁(yè)
文件大小: 551K
代理商: D6571E
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D6571E Data Sheet
DS6571E.2
DSP GROUP, INC., 3120 SCOTT BOULEVARD
SANTA CLARA, CA 95054 PH: 408 986-4300 FAX: 408 986-4490
7
PIN DESCRIPTIONS
D6571E-11 (DSP)
PIN
Name
HSTDB0 (LSB)
No.
14
I/O/Z
I/O/Z
Description
HOST DATA BUS. The HOST writes commands and reads status to/from the D6571E via this
bus. The HI/
LO
pin selects between the low byte and the high byte of the command/status.
This bus is used for input when
HSTWR
is low, and for output when
HSTRD
is low.
It has high impedance when
HSTWR
and
HSTRD
are high or RESET is high.
Active only during Host Read.
HIGH/LOW BYTE SELECT. When this signal is low, the HOST can read/write the low byte
of the status/command. When high , the high byte is selected.
HOST READ. When low, the HOST reads the low/high byte of the status word.
HOST WRITE. When low the HOST writes commands to the D6571E via HSTDB 0-7.
HOST ACKNOWLEDGE. This pin goes low when the D6571E send a status word to the
HOST. It goes high when the HOST reads the high byte of the status word.
DSP Chip Select (Optional connection to ground recommended, if not used.)
EXTERNAL MEMORY ADDRESS BUS
Chip Enable 3 for flash device or Address 15 for external 64K/ EPROM
Chip Enable 1 for flash device
Chip Enable 0 for flash device
Chip Enable 2 for flash device or Voice Prompt ROM/EPROM Chip Enable
Address Latch Enable for Samsung flash devices; Data Input for Toshiba device
Command Latch Enable for Samsung flash devices; Data Output for Toshiba device
EXTERNAL MEMORY DATA BUS.
HSTDB1
HSTDB2
HSTDB3
HSTDB4
HSTDB5
HSTDB6
HSTDB7 (MSB)
HI/
LO
13
12
11
10
9
8
7
4
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I
HSTRD
HSTWR
ACK
5
6
3
I
I
O
DSPCS
ADDRO (LSB)
ADDR1
ADDR2
ADDR3
ADDR4
ADDR5
ADDR6
ADDR7
ADDR8
ADDR9
ADDR10
ADDR11
ADDR12
ADDR13
ADDR14
ADDR15 /
CE
3
CE
1
CE0
CE2/VPCS
ALE/DI
CLE/DO
MDB0 (LSB)
MDB1
MDB2
MDB3
MDB4
MDB5
MDB6
MDB7
MDB8
MDB9
MDB10
MDB11
MDB12
77
59
60
61
62
63
64
65
66
67
68
69
70
71
72
2
1
80
75
76
78
79
39
40
41
42
43
44
45
46
47
48
49
50
51
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I/O
O
O
O
O
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
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