Difference between revisions of "I2C Registers"

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= I2CCNT =
 
= I2CCNT =
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
|+ REG_TMxCNT
+
|+ REG_I2CxCNT
 
!  BIT
 
!  BIT
 
!  DESCRIPTION
 
!  DESCRIPTION

Revision as of 16:58, 16 December 2012

Registers

NAME ADDRESS WIDTH
REG_I2C1DATA 0x1EC16100 1
REG_I2C1CNT 0x1EC16101 1
REG_I2C1CNTEX 0x1EC16102 2
REG_I2C1SCL 0x1EC16104 2
REG_I2C2DATA 0x1EC14400 1
REG_I2C2CNT 0x1EC14401 1
REG_I2C2CNTEX 0x1EC14402 2
REG_I2C2SCL 0x1EC14404 2
REG_I2C3DATA 0x1EC14800 1
REG_I2C3CNT 0x1EC14801 1
REG_I2C3CNTEX 0x1EC14802 2
REG_I2C3SCL 0x1EC14804 2

I2C Devices

Device I2C bus Device address Device description
1 0x4a Power management?(same device addr as the DSi power-management)
1 0x7a Camera0?(same dev-addr as DSi cam0)
1 0x78 Camera1?(same dev-addr as DSi cam1)
2 0x4a ?
2 0x78 ?
2 0x2c ?
2 0x2e ?
2 0x40 ?
2 0x44 ?
3 0xa6 ?
3 0xd0 ?
3 0xd2 ?
3 0xa4 ?
3 0x9a ?
3 0xa0 ?


I2CCNT

REG_I2CxCNT
BIT DESCRIPTION
0 HOLD (0=Last byte of transaction, 1=More bytes coming)
2 Error flag/ack?
4 Read mode related?
5 Read mode?
6 IRQ enable?
7 Enable?