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參數(shù)資料
| 型號(hào)： | MB86967PFV |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces |
| 中文描述： | 1 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP80 |
| 封裝： | PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 46/129頁 |
| 文件大?。?/td> | 1499K |
| 代理商： | MB86967PFV |
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46
MB86967
(Continued)
Bit no.
1
(8) DLCR7: Control Register 2
DLCR7 sets the MB86967 operation modes.
(Continued)
Bit name
BUF SIZE 1
Operation
Read/Write
Value
—
Function
Sets size of external buffer memory (transmitter buffer size +
receiver buffer size)
0
BUF SIZE 0
Read
Write
0
—
The read value of this bit is fixed at 0.
Not affected
Bit 7
Bit 6
Bit 5
Bit 4
RDYPOL
—
×
Bit 3
Bit 2
Bit 1
Bit 0
Read
Write
IDENT1
IDENT0
STBY
RBS1
RBS0
EOP/EOP
BYTE
SWAP
Initial Value
1
0
1
0
0
0
0
Bit no.
7 and 6 IDENT1
Bit name
Operation
Read
Value
—
Function
IDENT0
Reading the initial values of these bits permits checking the
type of controller used in software.
Read values 10: MB86967
Read values 11: MB86965A
Read values 01: MB86964
Read values 00: MB86960A
Writing to these bits is invalid.
The LAN controller is placed in the standby mode. In the
standby mode, the clock stops, reducing current consumption
to about 10%.
When 1 is prewritten to bit 4 of BMPR14, the MB86967 enters
the shutdown mode. In this mode, the crystal oscillator stops,
reducing the current consumption to about 1%.
In the PC card mode, when the PwrDwn bit of CCR1 is set to
1, this bit is set to 0. Writing from DLCR7 to this bit is
prohibited.
Operating state (not standby state). In the PC card mode,
when the PwrDwn bit of CCR1 is set to 0, this bit is set to 1.
Writing from DLCR7 to this bit is prohibited.
Return from the shutdown mode by resetting.
The value of the external pin RDYPOL can be read. In the PC
card mode, the read value is always 1. In the ISA bus mode,
the read value of this bit is always 0.
Not affected
5
STBY
Read/Write
0
1
4
RDYPOL
Read
—
Write
—
BUF SIZE 1
0
1
Buffer Size
8 Kbyte
32 Kbyte
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