參數(shù)資料
型號: MTV112M
廠商: Electronic Theatre Controls, Inc.
英文描述: 8051 Embedded CRT Monitor Controller Flash Version
中文描述: CRT顯示器8051嵌入式控制器Flash版本
文件頁數(shù): 14/20頁
文件大?。?/td> 160K
代理商: MTV112M
MYSON
TECHNOLOGY
MTV112M
(Rev 2.0)
Revision 2.0 - 14 - 2001/05/18
Reg name
MCTR
MSTUS
MCTR
MBUF
INTFLG
INTEN
FIFO
SLVCTR
SLVSTUS
SLVSTUS
91h (w)
RCBUF
TXBUF
SLVADR
addr
00h (w)
00h (r)
01h (w)
10h (r/w) MBUF7
50h (r/w) HPRchg VPRchg HPLchg VPLchg
60h (w)
EHPR
EVPR
70h (w)
FIFO7
FIFO6
90h (w)
ENSLV
SLVsel
91h (r)
WADR
SLVS
bit7
LS1
X
X
bit6
LS0
bit5
LDFIFO
DDC2
X
MBUF5
bit4
M256
BERR
X
MBUF4
bit3
M128
HFREQ
X
MBUF3
HFchg
EHF
FIFO3
ETXBI
TXBI
bit2
ACK
FIFOH
X
MBUF2
VFchg
EVF
FIFO2
ENSCL
RWB
bit1
P
FIFOL
MCLK1
MBUF1
FIFOI
EFIFO
FIFO1
X
ACKIN
bit0
S
BUSY
MCLK0
MBUF0
MI
EMI
FIFO0
X
X
SCLERR
X
MBUF6
EHPL
FIFO5
ERCBI
RCBI
EVPL
FIFO4
ESLVMI
SLVMI
Write to clear SLVMI
RCbuf4
TXbuf4
92h (r)
92h (w)
93h (w) SLVadr7 SLVadr6 SLVadr5 SLVadr4 SLVadr3 SLVadr2 SLVadr1
RCbuf7
TXbuf7
RCbuf6
TXbuf6
RCbuf5
TXbuf5
RCbuf3
TXbuf3
RCbuf2
TXbuf2
RCbuf1
TXbuf1
RCbuf0
TXbuf0
X
MCTR
(w) :
Master IIC interface control register.
LS1, LS0
= 11
= 10
= 01
= 00
LDFIFO
= 1
M256
= 1
M128
= 1
ACK
= 1
= 0
S, P
=
, 0
= X,
= 1, X
= X, 0
MCLK1 : MCLK0 : Master IIC speed select,
= 0
= 1
= 2
= 3
FIFOL is the status in which FIFO depth < 5.
FIFOL is the status in which FIFO depth < 4.
FIFOL is the status in which FIFO depth < 3.
FIFOL is the status in which FIFO depth < 2.
FIFO will be written while S/W reads MBUF.
Disables host writing EEPROM when address is over 256.
Disables host writing EEPROM when address is over 128.
In receiving mode, no acknowledgment is given by MTV112M.
In receiving mode, ACK is returned by MTV112M.
Start condition when Master IIC is not transferring.
Stop condition when Master IIC is not transferring.
Will resume transfer after a read/write MBUF operation.
Forces HSCL low and occupies the IIC bus.
50KHz for 8MHz X’tal, 75KHz for 12MHz X’tal.
100KHz for 8MHz X’tal, 150KHz for 12MHz X’tal.
200KHz for 8MHz X’tal, 300KHz for 12MHz X’tal .
400KHz for 8MHz X’tal, 600KHz for 12MHz X’tal.
* MTV112M uses a 100KHz clock to sample the S/P bit; any pulse should sustain at least 20us.
* A write/read MBUF operation can be recognized only after 10us of the MI flag's rising edge.
MSTUS
(r) :
Master IIC interface status register.
SCLERR
= 1
The ISCL pin has been pulled low by other devices during the transfer,
cleared when S=0.
DDC2B is active.
MTV112M remains in DDC1 mode.
IIC bus error, no ACK received from the slave, updated each time the
slave sends ACK on the ISDA pin.
MTV112M has detected a higher than 200Hz clock on the VSYNC pin.
FIFO high indicated.
FIFO low indicated.
Host drives the HSCL pin to low.
* While writing FIFO, the FIFOH/FIFOL flag will reflect the FIFO condition after 30us.
DDC2
= 1
= 0
= 1
BERR
HFREQ
FIFOH
FIFOL
BUSY
= 1
= 1
= 1
= 1
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