SCANCON0

Scanner Access Control Register 0
Notes:
  1. 1.Setting EN = 0 does not affect any other register content.
  2. 2.This bit can be cleared in software. It is cleared in hardware when LADR > HADR (and a data cycle is not occurring) or when CRCGO = 0.
  3. 3.CRCEN and CRCGO bits must be set before setting the SGO bit.
  4. 4.Trigger Mode source selection can be set using the SCANTRIG register.
Name:
SCANCON0
Offset:
0x1C98
Reset:
Access:
Bit76543210
ENSGOBUSYDABORTINTMMD[1:0]
AccessR/WR/W/HCRRRR/WR/W
Reset0001000

Bit 7 – EN: Scanner Enable(1)

Scanner Enable(1)

ValueDescription
1 Scanner is enabled
0 Scanner is disabled

Bit 6 – SGO: Scanner GO(2,3)

Scanner GO(2,3)

ValueDescription
1 Begin scanner operations
0 Scanner operations will not occur

Bit 5 – BUSY: Scanner Busy Indicator

Scanner Busy Indicator

ValueDescription
1 Scanner cycle is in process
0 Scanner cycle is compete (or never started)

Bit 4 – DABORT: Scanner Abort Signal

Scanner Abort Signal

ValueDescription
1 SCANLADR points to an invalid NVM address, or the CRC is disabled
0 SCANLADR points to a valid NVM address and the CRC is enabled

Bit 3 – INTM: Scanner Interrupt Management Mode Select

Scanner Interrupt Management Mode Select

ValueNameDescription
1 MD = ‘00’, ’01’, or ‘11’ Scan operations are paused during the interrupt response and resume after the interrupt has been serviced
0 MD = ‘00’ or ‘11’ Interrupt operations are stalled each time the scanner accesses memory and resume between scan operations
0 MD = ‘01’ Interrupt operations are stalled until SGO is cleared by hardware
x MD = ‘10’ This bit is ignored

Bits 1:0 – MD[1:0]: Scanner Memory Access Mode Select(4)

Scanner Memory Access Mode Select(4)

ValueDescription
11 Trigger Mode
10 Peek Mode
01 Burst Mode
00 Concurrent Mode