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参数资料
| 型号： | 5962-9205805QXA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 32-BIT, 60 MHz, OTHER DSP, CPGA141 |
| 封装： | STAGGERED, CERAMIC, PGA-141 |
| 文件页数： | 52/54页 |
| 文件大小： | 1033K |
| 代理商： | 5962-9205805QXA |
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SMJ320C31, SMJ320LC31, SMQ320LC31
DIGITAL SIGNAL PROCESSORS
SGUS026G APRIL 1998 REVISED SEPTEMBER 2006
7
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
Terminal Functions
TERMINAL
TYPE
DESCRIPTION
CONDITIONS
WHEN
NAME
QTY
TYPE
DESCRIPTION
WHEN
SIGNAL IS Z TYPE
PRIMARY-BUS INTERFACE
D31 D0
32
I/O/Z
32-bit data port
S
H
R
A23 A0
24
O/Z
24-bit address port
S
H
R
R/W
1
O/Z
Read / write. R/ W is high when a read is performed and low when a write is performed
over the parallel interface.
S
H
R
STRB
1
O/Z
External-access strobe
S
H
RDY
1
I
Ready. RDY indicates that the external device is prepared for a transaction
completion.
HOLD
1
I
Hold. When HOLD is a logic low, any ongoing transaction is completed. A23 A0,
D31 D0, STRB, and R / W are placed in the high-impedance state and all transac-
tions over the primary-bus interface are held until HOLD becomes a logic high or until
the NOHOLD bit of the primary-bus-control register is set.
HOLDA
1
O/Z
Hold acknowledge. HOLDA is generated in response to a logic low on HOLD. HOLDA
indicates that A23 A0, D31 D0, STRB, and R / W are in the high-impedance state
and that all transactions over the bus are held. HOLDA is high in response to a logic
high of HOLD or the NOHOLD bit of the primary-bus-control register is set.
S
CONTROL SIGNALS
RESET
1
I
Reset. When RESET is a logic low, the device is in the reset condition. When RESET
becomes a logic high, execution begins from the location specified by the reset vector.
INT3 INT0
4
I
External interrupts
IACK
1
O/Z
Interrupt acknowledge. IACK is generated by the IACK instruction. IACK can be used
to indicate the beginning or the end of an interrupt-service routine.
S
MCBL / MP
1
I
Microcomputer boot-loader / microprocessor mode-select
SHZ
1
I
Shutdown high impedance. When active, SHZ shuts down the device and places all
pins in the high-impedance state. SHZ is used for board-level testing to ensure that
no dual-drive conditions occur. CAUTION: A low on SHZ corrupts the device memory
and register contents. Reset the device with SHZ high to restore it to a known
operating condition.
XF1, XF0
2
I/O/Z
External flags. XF1 and XF0 are used as general-purpose I / Os or to support
interlocked processor instruction.
S
R
SERIAL PORT 0 SIGNALS
CLKR0
1
I/O/Z
Serial port 0 receive clock. CLKR0 is the serial shift clock for the serial port 0 receiver.
S
R
CLKX0
1
I/O/Z
Serial port 0 transmit clock. CLKX0 is the serial shift clock for the serial port 0
transmitter.
S
R
DR0
1
I/O/Z
Data-receive. Serial port 0 receives serial data on DR0.
S
R
DX0
1
I/O/Z
Data-transmit output. Serial port 0 transmits serial data on DX0.
S
R
FSR0
1
I/O/Z
Frame-synchronization pulse for receive. The FSR0 pulse initiates the data-receive
process using DR0.
S
R
FSX0
1
I/O/Z
Frame-synchronization pulse for transmit. The FSX0 pulse initiates the data-transmit
process using DX0.
S
R
TIMER SIGNALS
TCLK0
1
I/O/Z
Timer clock 0. As an input, TCLK0 is used by timer 0 to count external pulses. As an
output, TCLK0 outputs pulses generated by timer 0.
S
TCLK1
1
I/O/Z
Timer clock 1. As an input, TCLK0 is used by timer 1 to count external pulses. As an
output, TCLK1 outputs pulses generated by timer 1.
S
I = input, O = output, Z = high-impedance state
S = SHZ active, H = HOLD active, R = RESET active
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