22

DS566F1

CS4351

4. Write the desired data to the register pointed to by the MAP.

5. If the INCR bit (see Section 4.9.1) is set to 1, repeat the previous step until all the desired registers

are written, then bring CS high.

6. If the INCR bit is set to 0 and further SPI writes to other registers are desired, it is necessary to bring

CS high, and follow the procedure detailed from step 1. If no further writes to other registers are de-

sired, bring CS high.

)

4.10

Memory Address Pointer (MAP)

4.10.1

INCR (AUTO MAP INCREMENT ENABLE)

Default = ‘0’

0 - Disabled

1 - Enabled

4.10.2

MAP (MEMORY ADDRESS POINTER)

Default = ‘0000’

76543210

INCR

Reserved

Reserved

Reserved

MAP3

MAP2

MAP1

MAP0

00000000

MAP

MSB

LSB

DATA

byte 1

byte n

R/W

MAP = Mem ory Address Pointer

ADDRESS

CHIP

CDIN

CC LK

CS

1001100

Figure 10. Control Port Timing, SPI mode