User's Manual

TOBY-R2 series - System Integration Manual
UBX-16010572 - R04 System description
Page 15 of 147
Function
Pin Name
Pin No
I/O
Description
Remarks
Audio
I2S_TXD
51
O /
I/O
I
2
S transmit data /
GPIO
I
2
S transmit data output, alternatively configurable as GPIO.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
I2S_RXD
53
I /
I/O
I
2
S receive data /
GPIO
I
2
S receive data input, alternatively configurable as GPIO.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
I2S_CLK
52
I/O /
I/O
I
2
S clock /
GPIO
I
2
S serial clock, alternatively configurable as GPIO.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
I2S_WA
50
I/O /
I/O
I
2
S word alignment /
GPIO
I
2
S word alignment, alternatively configurable as GPIO.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
Clock
output
GPIO6
61
O
Clock output
1.8 V configurable clock output.
See section 1.11 for functional description.
See section 2.7 for external circuit design-in.
GPIO
GPIO1
21
I/O
GPIO
1.8 V GPIO with alternatively configurable functions.
See section 1.12 for functional description.
See section 2.8 for external circuit design-in.
GPIO2
22
I/O
GPIO
1.8 V GPIO with alternatively configurable functions.
See section 1.12 for functional description.
See section 2.8 for external circuit design-in.
GPIO3
24
I/O
GPIO
1.8 V GPIO with alternatively configurable functions.
See section 1.12 for functional description.
See section 2.8 for external circuit design-in.
GPIO4
25
I/O
GPIO
1.8 V GPIO with alternatively configurable functions.
See section 1.12 for functional description.
See section 2.8 for external circuit design-in.
GPIO5
60
I/O
GPIO
1.8 V GPIO with alternatively configurable functions.
See section 1.12 for functional description.
See section 2.8 for external circuit design-in.
Reserved
RSVD
6
N/A
Reserved pin
This pin must be connected to ground.
See sections 1.13 and 2.9
RSVD
18, 19
N/A
Reserved pin
Test-Point for diagnostic access is recommended.
See sections 1.13 and 2.9
RSVD
1, 7-9, 29,
31, 33-43,
45, 47-49,
77, 84, 91
N/A
Reserved pin
Leave unconnected.
See sections 1.13 and 2.9
Table 3: TOBY-R2 series module pin definition, grouped by function