W90220F Winbond Electronics Corp America, W90220F Datasheet - Page 70
W90220F
Manufacturer Part Number
W90220F
Description
Pa-risc Embedded Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W90220F.pdf
(79 pages)
- Current page: 70 of 79
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The above information is the exclusive intellectual property of Winbond Electroncs Corp. and shall not be dsiclosed or distributed or reproduced without permission from
Winbond.
70
Bit 0-7
Bit 8-15
Control Register (CTRL)
Port address : 0xf0000388
Bits 0
Bit 1
Bit 2
IntTXen
DVRST
8
0
8
Device reset
Reset TX-FIFO
Reset RX-FIFO
This is a self-clear bit, ie. set this bit to 1, it will be clear to 0 automatically after 1 EXTCLK.
This is a self-clear bit, ie. set this bit to 1, it will be clear to 0 automatically after 1 EXTCLK.
This is a self-clear bit, ie. set this bit to 1, it will be clear to 0 automatically after 1 EXTCLK.
When this bit is set, all registers will be set to its default value and the controller will be also
set to its initial states.
When this bit is set, The TX-FIFO pointer will be cleared to 0, the TX-FIFO is empty
immediately.
When this bit is set, The RX-FIFO pointer will be cleared to 0, the RX-FIFO is empty
immediately.
Number of bits per frame
Bits per frame = BPF[0:7] + 1. (max. 256 bits/frame)
Serial clock divider
On master mode,the SCLK is an output and its frequency is
IntERRen
SCLK frequency = EXTCLK / (2*(SCLKDIV+1))
TXRST
9
1
9
RXRST
10
10
2
Read/Write
SCLKDIV[0:7]
11
11
3
RXTH[0:1]
12
12
4
Reserved
Power-on Default : 0x0000
13
13
5
TXTH[0:1]
14
14
6
IntRxen
15
15
7
W90220F
Version 0.84
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