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參數(shù)資料
| 型號(hào)： | TFB2022AIMFP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, MQFP240 |
| 封裝： | METAL, QFP-240 |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 154K |
| 代理商： | TFB2022AIMFP |
SLLS183 AUGUST 1994
3
PPOST OFFICE BOX 655303
HOU DALLAS, TEXAS 75265
Terminal Functions
host interface
TERMINAL
NAME
I/O
FROM/TO
DESCRIPTION
NO.
BSTAT<1:0>*
14, 13
I
Host interface
Host-interface status:
HH
HL
LH
LL
Normal
Reserved
Bus error
Backoff/retry
BSTRDY*
131
I
Host interface
Burst ready
CLK
29
I
Host interface
Clock input. CLK is the processor clock for synchronous transactions on the host side.
Up to 25 MHz is recommended.
DL<1:0>
147, 146
I
Host interface
Host-interface data length:
LL
LH
HL
HH
64 bytes
32 bytes
16 bytes
8 bytes
DSACK<1:0>*
145, 144
I
Host interface
Data acknowledge:
Single mode (TBST* = high):
LL
Complete cycle,
data bus port 32
LH
Reserved
HL
Reserved
HH
Insert wait state
Burst mode (TBST* = low):
LL
Low speed, 32-bit burst capable
LH
HL
HH
High speed, 32-bit burst capable
Low speed, 64-bit burst capable
High speed, 64-bit burst capable
HA<31:0>
205204,
202197,
195190,
188183,
181176,
174169
I/O
Host interface
Host-interface address or upper quadlet of data
HAP<3:0>
209206
I/O
Host interface
Extended host-interface address or parity for upper quadlet of host interface data
HAS*
156
I
Host interface
Host-interface address strobe
HD<31:0>
106, 42,
240239,
237232,
229225,
223221,
219218,
216211
I/O
Host interface
Lower quadlet of host-interface data
HDP<3:0>
11, 1, 230,
220
I/O
Host interface
Parity for lower quadlet of host-interface data
HIP*
155
I
Host interface
Host-interface transaction in progress
TR/W*
148
I
Host interface
Host-interface read or write
TSIZE<1:0>
167, 166
I/O
Host interface
Host-interface transaction size:
LL
Word (32 bits or greater)
LH
Byte (8 bits)
HL
Half word (16 bits)
HH
Three bytes (24 bits)
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