MFC2000 datasheet(239/426 Pages) ETC

239 / 426 page

Hardware Description

MFC 2000 Multifunctional Peripheral Controller 2000

100723A

Conexant

11-7

Bit 15

n17

n18

n15

n16

n13

n14

n11

n12

n10

Bit 0

18 nozzles

2nd DMA Ch2 halfword

1st DMA Ch2 halfword

Bit2

This bit indicates whether a print underrun condition has occurred.

Basically, an underrun condition exists if the system is not able to

keep up with the print rate.

Bit 1

Once a halfword has been packed and is ready for output to DMA

channel 2, a 1 will be indicated in this bit of the register. This bit

directly reflects the state of the output signal brb_ch2rdy, and is

intended only for status purposes. Once the data has been read, the

bit is cleared automatically. The bit is also reset by creating a falling

edge on the RotateStart bit.

Bit 0

This bit is written by the CPU and indicates which direction the print

head is moving as viewed when looking at the print on the page.

0 = left to right shuttle motion

1 = right to left shuttle motion

Rotation Line Length Register

Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

Rotation Line

Length Register

(RotLineLength)

01FF8875

(Not Used)

LL10

LL9

LL8

Rst. Value

xxxxx000b

Read Value

00h

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

Rotation Line

Length Register

(RotLineLength)

01FF8874

LL7

LL6

LL5

LL4

LL3

LL2

LL1

LL0

Rst. Value

00h

Read Value

00h

Bits 15-11

Not used

Bits 10-0

The value in this field indicates the length in bytes of the actual

printable data. The value programmed into this register is one less

than the actual value in bytes. The printable data in a swath can be

between 1 and 2048 bytes.

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