參數(shù)資料
型號(hào)： TMP320C40
廠商： Texas Instruments, Inc.
元件分類(lèi)： 數(shù)字信號(hào)處理
英文描述： DIGITAL SIGNAL PROCESSORS
中文描述： 數(shù)字信號(hào)處理器
文件頁(yè)數(shù)： 10/62頁(yè)
文件大?。?/td> 1066K
代理商： TMP320C40
SGUS017H
–
OCTOBER 1993
–
REVISED OCTOBER 2001
10
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
signal descriptions
This section gives signal descriptions for the SMJ320C40 device. The SMJ320C40 signal descriptions table
lists each signal, the number of pins, operating mode(s) (that is, input, output, or high-impedance state as
indicated by I, O, or Z, respectively), and function. All pins labeled NC are not to be connected by the user. A
line over a signal name (for example, RESET) indicates that the signal is active low (true at a logic-0 level). The
signals are grouped according to functions.
SMJ320C40 Signal Descriptions
SIGNAL
NAME
NO. OF
PINS
TYPE
DESCRIPTION
GLOBAL BUS EXTERNAL INTERFACE (80 PINS)
D31
–
D0
32
I/O/Z
32-bit data port of the global bus external interface
DE
1
I
Data-bus-enable signal for the global bus external interface
A30
–
A0
31
O/Z
31-bit address port of the global bus external interface
AE
1
I
Address-bus-enable signal for the global bus external interface
STAT3
–
STAT0
4
O
Status signals for the global bus external interface
LOCK
STRB0
R/W0
PAGE0
RDY0
CE0
STRB1
R/W1
PAGE1
RDY1
CE1
1
O
Lock signal for the global bus external interface
1
O/Z
Access strobe 0 for the global bus external interface
1
O/Z
Read/write signal for STRB0 accesses
1
O/Z
Page signal for STRB0 accesses
1
I
Ready signal for STRB0 accesses
1
I
Control enable for the STRB0, PAGE0, and R/W0 signals
1
O/Z
Access strobe 1 for the global bus external interface
1
O/Z
Read/write signal for STRB1 accesses
1
O/Z
Page signal for STRB1 accesses
1
I
Ready signal for STRB1 accesses
1
I
Control enable for the STRB1, PAGE1, and R/W1 signals
LOCAL BUS EXTERNAL INTERFACE (80 PINS)
LD31
–
LD0
32
I/O/Z
32-bit data port of the local bus external interface
LDE
1
I
Data-bus-enable signal for the local bus external interface
LA30
–
LA0
31
O/Z
31-bit address port of the local bus external interface
LAE
1
I
Address-bus-enable signal for the local bus external interface
LSTAT3
–
LSTAT0
4
O
Status signals for the local bus external interface
LLOCK
LSTRB0
1
O
Lock signal for the local bus external interface
1
O/Z
Access strobe 0 for the local bus external interface
LR/W0
1
O/Z
Read/write signal for LSTRB0 accesses
LPAGE0
1
O/Z
Page signal for LSTRB0 accesses
LRDY0
1
I
Ready signal for LSTRB0 accesses
LCE0
LSTRB1
1
I
Control enable for the LSTRB0, LPAGE0, and LR/W0 signals
1
O/Z
Access strobe 1 for the local bus external interface
LR/W1
I = input, O = output, Z = high impedance
STRB0, STRB1 and associated signals (R/W1, R/W0, PAGE0, PAGE1, etc.) are effective over the address ranges defined by the
STRB ACTIVE bits.
§
HFH package has additional power and ground pins to reduce noise problems.
1
O/Z
Read/write signal for LSTRB1 accesses
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