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参数资料
| 型号： | TFB2022AIMFP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, MQFP240 |
| 封装： | METAL, QFP-240 |
| 文件页数： | 5/10页 |
| 文件大小： | 154K |
| 代理商： | TFB2022AIMFP |
SLLS183 AUGUST 1994
5
PPOST OFFICE BOX 655303
HOU DALLAS, TEXAS 75265
Terminal Functions
interface to TFB2002A (continued)
TERMINAL
NAME
I/O
FROM/TO
DESCRIPTION
NO.
FRD*
135
I
TFB2002B IOC
Futurebus+ read/write indicator: L = read (move data from Futurebus+ to FIFO);
H = write (move data from FIFO to Futurebus+)
FSTRB
134
I
TFB2002B IOC
Futurebus+ strobe: perform next Futurebus+ event
HADEC<3:0>
161,
159,
158,
157
O
TFB2002B IOC
Host address decode. Address decoding for the host-interface address:
Slave encoding:
Master encoding:
LLLL
Unselected
LLLH
Host memory
LLHL
Host-unit space
LLLL
LLLH
LLHL
Unselected
Memory address compelled
Maximum burst capable or
extended unit space
Memory address 64-byte burst
32-byte-memory-address capable
16-byte-memory-address capable
8-byte-memory-address capable
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
LLHH Host CSR
LHLL
Broadcast mailbox
LHLH Reserved
LHHL Split response hit
LHHH Futurebus+ CSR address
HLLL
Reserved
HLLH Broadcast CSR address
HLHL Reserved
HLHH Reserved
HHLL Reserved
HHLH DPU CSR
HHHL Reserved
HHHH Reserved
LLHH
LHLL
LHLH
LHHL
LHHH
HLLL
HLLH
HLHL
HLHH
HHLL
HHLH
HHHL
HHHH
HBADLD*
18
I
TFB2002B IOC
Host address load. Futurebus+ has been granted for the requested transaction
HBMASTER*
26
I
TFB2002B IOC
Host master. Indicates host-interface mastership
HMODE<2:0>
164,
163,
162
I
TFB2002B IOC
Host mode. HMODE<2:0> indicates to the TFB2022AI what action is to be taken in the host
interface:
LLL
Reserved
LLH
Between FIFO and host interface (single transfer), between
TFB2022AI resident CSR and host interface, or
between TFB2022AI resident CSR and FIFO
LHL
From FIFO to TFB2022AI resident CSR
LHH
Reserved
HLL
Reserved
HLH
Between FIFO and host bus (burst mode)
HHL
Reserved
HHH
Reserved
HSTRB*
165
I
TFB2002B IOC
Host strobe. Perform next host-interface request as indicated in HMODE<2:0>
NEWADDR*
149
I
TFB2002B IOC
New address. Increment address in the TFB2022AI address register
SELECTED*
132
I
TFB2002B IOC
Module selected. Futurebus+ transaction uses this module. The DPU is used as a slave of
the Futurebus+ transaction.
SPACEAV*
152
O
TFB2002B IOC
Space available in FIFO. In compelled mode, SPACEAV* indicates that space is available
in the FIFO for another transfer. In packet or burst mode, SPACEAV* indicates that space
is available in the FIFO for another packet or burst.
UNALIGNED*
17
O
TFB2002 IOC
FB+ slaved partial unaligned operation
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