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User's Manual l TQMa6x & TQMa6xP UM 0403 l © 2019, TQ-Systems GmbH
Page 22
3.2.5.10
I
2
C / ENET-Patch Variants
For TQMa6x revision 04xx to be backward compatible with TQMa6x revision 02xx, the I
2
C bus configuration varies on account
of Erratum ERR006687 (see also chapter 3.2.5.5).
Variant “A” is preferred for TQMa6x with “Solo”, “DualLite”, “Dual”, and “Quad” CPUs.
Erratum ERR006687 is fixed in “DualPlus” and “QuadPlus” CPUs.
The following block diagrams show the different Variants.
TQMa6x.04xx Variant “A” is compatible with the Starterkit MBa6x.
i.MX6
GPIO_5 (R4)
GPIO_6 (T3)
CSI0_DAT9 (N5)
CSI0_DAT8 (N6)
X1-86
X1-88
NC
NC
EEPROM 0x57
LM75A 0x49
RTC 0x68
X1-107
AUDIO 0x18
X1-109
I2C1_SCL
I2C1_SDA
EEPROM 0x50
LM75A 0X48
PMIC 0x08
Variant “A“, TQMa6x
.
04xx
MBa6x
2 x I2C1 + ENET-Ping-Patch
Standard variant for Solo, DualLite, Dual, and Quad
Illustration 9:
ENET-Patch Variant “A”
TQMa6x.04xx Variant “B” is also fully backward compatible (HW + SW) with designs based on TQMa6x revision 01xx.
i.MX6
GPIO_5 (R4)
GPIO_6 (T3)
CSI0_DAT9 (N5)
CSI0_DAT8 (N6)
X1-86
X1-88
EEPROM 0x57
LM75A 0x49
RTC 0x68
X1-107
AUDIO 0x18
X1-109
I2C1_SCL
I2C1_SDA
EEPROM 0x50
LM75A 0X48
PMIC 0x08
I2C3_SCL
I2C3_SDA
Variant “B“, TQMa6x
.
04xx
MBa6x
1 x I2C1 + 1 x I2C3
Standard variant for DualPlus, and QuadPlus
Illustration 10: ENET-Patch Variant “B”
TQMa6x.04xx Variant “C” provides an additional GPIO compared to Variant “A” but is not compatible with the MBa6x.
i.MX6
GPIO_5 (R4)
GPIO_6 (T3)
CSI0_DAT9 (N5)
CSI0_DAT8 (N6)
X1-86
X1-88
GPIO_5
NC
EEPROM 0x57
LM75A 0x49
RTC 0x68
X1-107
AUDIO 0x18
X1-109
I2C1_SCL
I2C1_SDA
EEPROM 0x50
LM75A 0X48
PMIC 0x08
Variant “C“, TQMa6x
.
04xx
Carrier board
1 x I2C1 + ENET-Ping-Patch + GPIO
Illustration 11: ENET-Patch Variant “C”