M65761FP Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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M65761FP

QM-CODER

MITSUBISHI ELECTRIC  

MITSUBISHI ICs (LSI)

M65761FP

QM-CODER

(8) Number of Lines to be Processed Specified (R)

(address:8)

(address:9)

d7

d0

LIN_REG_L :

LINE_L

LIN_REG_H :

LINE_H

d0-7 (LINE_L):The number of lines actually processed is read out (Lower bytes) (0 to 65535)

d0-7 (LINE_H):The number of lines actually processed is read out (Upper bytes)

When the number of lines processed≥number of lines set,coding/decoding/through stops temporarily/end of processing

∗ NOTE:The number of lines to be processed by this processing is cleared to 0 by the issuance of process start command.

(9) Data write in buffer (W) (See Note1)

(address:A)

(address:B)

d7

d0

DWR_BUF_L :

DWR_L

DWR_BUF_H :

DWR_H

d0-7 (DWR_L):This writes in the coded data/image data/context table RAM data (Lower bytes)

d0-7 (DWR_H):This writes in the coded data/image data/context table RAM data (Upper bytes)

(10) Data read out buffer (R) (See Note1)

d7

d0

(address:A)

(address:B)

DRD_BUF_L :

DRD_BUF_H :

DRD_L

DRD_H

d0-7 (DRD_L) :This read out the coded data/image data/context table RAM data. (Lower bytes)

d0-7 (DRD_H) :This read out the coded data/image data/context table RAM data. (Upper bytes)

∗ NOTE1:Address A is used with 8bit bus. In case of the 16 bit bus, only the word access is possible.

(Not byte access). If the number of coded data bytes is an odd number during coding, an one byte pad ("00") is attached after the

end marker is issued in order to use it as a word boundary.

See Table 11.2 for the bit arrangement used during the coded data/image data. In case of the context table RAM data, only the

lower byte becomes valid data regardless of the bus width of the host bus (BUS16).

Table 11. 4 Context data line-up

Host I/F

Bus Width

Upper address (B)

Lower address (A)

d15 • • • • • • • d8 d7 d6 • • • • • d0

8bit

16bit

–

mps s6 • • • • • s0

–

mps s6 • • • • • s0

mps:Superior symbol MPS (expected value ∗o/1)

s6-0:Status number ST (0 to 112)

(11) Marker code set up register (W) (address:C)

d7

d0

MSET_REG :

MSET

d0-7 (MSET):The end marker code used during coding is set.(SDNORM=02h, SDRST=03h)

The byte set to this register is outputted as the end marker during coding.

d7

d0

(12) Marker code read out register (R) (address:C)

MDET_REG :

MDET

d0-7 (MDET):The marker codes detected during decoding are read out.

(SDNORM=02h, SDRST=03h, ABORT=04h etc)

The marker codes detected during decoding read out as is.

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