MTV230MV64 View Datasheet(PDF) - Myson Century Inc

Part Name

Description

View to exact match

MTV230MV64

8051 Embedded LCD Monitor Controller with Flash OSD

Myson Century Inc 

MYSON

TECHNOLOGY

MTV230M

(Rev 1.0)

Reg name

IICCTR

IICSTUS

IICSTUS

INTFLG

INTFLG

INTEN

MBUF

RCABUF

TXABUF

SLVAADR

RCBBUF

TXBBUF

SL VB ADR

addr

bit7

F00h (r/w)

F01h (r) WadrB

F02h (r) MAckIn

F03h (r) TXBI

F03h (w)

F04h (w) ETXBI

F05h (r/w)

F06h (r)

F06h (w)

F07h (w) ENSlvA

F08h (r)

F08h (w)

F09h (w) ENSlvB

bit6

bit5

bit4

WadrA SlvRWB SAckIn

bit3

SLVS

bit2

bit1

bit0

MAckO P

S

SlvAlsb1 SlvAlsb0

RCBI

ERCBI

SlvBMI TXAI RCAI SlvAMI

SlvBMI

SlvAMI

ESlvBMI ETXAI ERCAI ESlvAMI

Master IIC receive/transmit data buffer

Slave A IIC receive buffer

Slave A IIC transmit buffer

Slave A IIC address

Slave B IIC receive buffer

Slave B IIC transmit buffer

Slave B IIC address

MbufI

MbufI

EMbufI

IICCTR (r/w) : IIC interface control register.

MAckO = 1 → In master receive mode, NACK is returned by MTV230M.

= 0 → In master receive mode, ACK is returned by MTV230M.

S, P = ↑, 0 → Start condition when Master IIC is not during transfer.

= X, ↑ → Stop condition when Master IIC is not during transfer.

= 1, X → Will resume transfer after a read/write MBUF operation.

IICSTUS (r) : IIC interface status register.

WadrB = 1 → The data in RCBBUF is word address.

WadrA = 1 → The data in RCABUF is word address.

SlvRWB = 1 → Current transfer is slave transmit.

= 0 → Current transfer is slave receive.

SAckIn = 1 → The external IIC host respond NACK.

SLVS = 1 → The slave block has detected a START, cleared when STOP detected.

SlvAlsb1,SlvAlsb0 : The 2 LSB which host send to Slave A block.

MAckIn = 1 → Master IIC bus error, no ACK received from the slave IIC device.

= 0 → ACK received from the slave IIC device.

INTFLG (w) : Interrupt flag. A interrupt event will set its individual flag, and, if the corresponding interrupt

enable bit is set, the 8051 INT1 source will be driven by a zero level. Software MUST clear

this register while serve the interrupt routine.

SlvBMI = 1 → No action.

= 0 → Clears SlvBMI flag.

SlvAMI = 1 → No action.

= 0 → Clears SlvAMI flag.

MbufI = 1 → No action.

= 0 → Clears Master IIC bus interrupt flag (MbufI).

INTFLG (r) : Interrupt flag.

TXBI = 1 → Indicates the TXBBUF needs a new data byte, cleared by writing TXBBUF.

RCBI = 1 → Indicates the RCBBUF has received a new data byte, cleared by reading

RCBBUF.

SlvBMI = 1 → Indicates the slave IIC address B matches condition.

TXAI = 1 → Indicates the TXABUF needs a new data byte, cleared by writing TXABUF.

RCAI = 1 → Indicates the RCABUF has received a new data byte, cleared by reading

RCABUF.

SlvAMI = 1 → Indicates the slave IIC address A match condition.

Revision 1.0

- 14 -

2000/11/15

Share Link: