M65762FP Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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M65762FP

QM-CODER

MITSUBISHI ELECTRIC  

MITSUBISHI SEMICONDUCTOR (LSI)

M65762FP

QM-CODER

Register Configuration

1. List of Registers

Table 1 List of Registers

Address

Register name

0 System setting

1 Parameter setting

2 Command

2 Status

3

Interrupt enable

setting

4, 5

Setting number of

pixels

6, 7

Setting number of

lines

8, 9

Number of

processing lines

A Load/store buffer

B

Operation mode

setting

C Marker code setting

C Marker code reading

D

Scale-up/

scale-down setting

R/W

W/R

W/R

W

R

W/R

W/R

W/R

R

W/R

W/R

W

R

W/R

Content

- LSI H/W reset

- Selects bit width of code data bus (32 bits/16 bits/8 bits).

- Selects coding (image) data byte swap on code data bus.

- Selects coding (image) data bit swap on code data bus.

- Selects image data bit swap on image data bus.

- Selects image data I/F (parallel I/F and serial I/F).

- Selects bit width of image data bus (32 bits/16 bits).

- Template selection (3-line template/2-line template).

- Sets up the AT pixel position (127 max).

(When set to 0, selects non-AT (default position).)

- Context table RAM initializing processing command

- Start/stop command

(Coding/decoding, image data through, load/store of the line memory)

- Start/stop command of load/store of context table RAM

- Selects temporary stop/termination end mode.

- Processing status (in process/end of process)

- Ready for reading/writing coding (image) data on code data bus

- Detects marker code (SDNORM, SDRST, ABORT, etc.).

- Interrupt request status

- SC counter overflow error

- Processing mode (temporary stop/end of termination)

- Interrupt enable setting corresponding to each bit position of status register

- Indicates pause/restart with marker code detected (at time of decoding)

- Sets the number of pixels per line.

(a maximum of 10240 pixels with 2-line template selected)

- Sets the number of lines to be coded/decoded (1 line or more, a maximum of 65535

lines)

- Number of setting the coded/decoded lines (a maximum of 65535 lines)

- Buffer register that loads/stores context table RAM data from the MPU.

(RAM address is automatically incremented each time data is written/read.)

- Sets the operation mode.

(Coding/decoding, image data through, and load/store of line memory)

- Selects read-through of head coding data in decoding (0 ~ 3 bytes).

- Selects the typical prediction function.

- Selects prohibition of line memory initialization.

- Sets the terminal marker code in encoding (SDNORM/SDRST)

- Reads a marker code in decoding.

(SDNORM, SDRST, ABORT, others)

- Scale down in coding (1/2 scale-down of horizontal and vertical, horizontal OR

processing)

- Scale-up at time of decoding (scale-up of horizontal and vertical by twice)

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