User's Manual

TOBY-R2 series - System Integration Manual
UBX-16010572 - R04 Appendix
Page 140 of 147
A.2 Pin-out comparison between TOBY-L2 and TOBY-R2
TOBY-L2
TOBY-R2
Pin No
Pin Name
Description
Pin Name
Description
Remarks for migration
1
RSVD
Reserved
RSVD
Reserved
2
GND
Ground
GND
Ground
3
V_BCKP
RTC Supply Input/Output
3.0 V output
1.4 V – 4.2 V input (RTC backup)
V_BCKP
RTC Supply Input/Output
1.8 V output
1.0 V – 1.9 V input (RTC backup)
Voltage values slightly different,
but with no functional difference
4
VUSB_DET
Not supported
VUSB_DET
VBUS USB supply (5 V) detection
5 V must be applied at VUSB_DET
input of TOBY-R2 to enable USB.
The pin must be left unconnected
on TOBY-L2, as it is not supported.
5
V_INT
Interfaces Supply Output
1.8 V output
V_INT
Interfaces Supply Output
1.8 V output
6
RSVD
Reserved
This pin must be connected to GND
RSVD
Reserved
This pin must be connected to GND
7-9
RSVD
Reserved
RSVD
Reserved
10
DSR
UART DSR Output
19
/ GPIO
20
DSR
UART DSR Output
Further GPIO function on TOBY-L2
11
RI
UART RI Output
19
/ GPIO
20
RI
UART RI Output
Further GPIO function on TOBY-L2
12
DCD
UART DCD Output
19
/ GPIO
20
DCD
UART DCD Output
Further GPIO function on TOBY-L2
13
DTR
UART DTR Input
19
/ GPIO
20
DTR
UART DTR Input
Further GPIO function on TOBY-L2
14
RTS
UART RTS Input
19
RTS
UART RTS Input
15
CTS
UART CTS Output
19
CTS
UART CTS Output
16
TXD
UART Data Input
19
TXD
UART Data Input
17
RXD
UART Data Output
19
RXD
UART Data Output
18
RSVD
Reserved
RSVD
Reserved
Test-Point recommended for TOBY-R2
19
RSVD
Reserved
RSVD
Reserved
Test-Point recommended for TOBY-R2
20
PWR_ON
Power-on Input
Internal 50k pull-up to VCC
Switch-on with low level
PWR_ON
Power-on Input
Internal 10k pull-up to V_BCKP
Switch-on /-off with low pulse
Internal pull-up slightly different.
Function slightly different.
21
GPIO1
GPIO
20
WWAN status indication on ”00”,
“01” and “60” product versions
GPIO1
GPIO
22
GPIO2
GPIO
20
GPIO2
GPIO
23
RESET_N
Reset signal Input
Internal 50k pull-up to VCC
Reset, Switch-on, Switch-off
RESET_N
Reset signal Input
Internal 10k pull-up to V_BCKP
Reset, Switch-on
Internal pull-up slightly different.
Function slightly different.
24
GPIO3
GPIO
20
GPIO3
GPIO
25
GPIO4
GPIO
20
GPIO4
GPIO
26
HOST_SELECT0
Not supported
HOST_SELECT0
Not supported
27
USB_D-
USB Data I/O (D-)
USB_D-
USB Data I/O (D-)
28
USB_D+
USB Data I/O (D+)
USB_D+
USB Data I/O (D+)
29
RSVD
Reserved
RSVD
Reserved
30
GND
Ground
GND
Ground
31
RSVD
Reserved
RSVD
Reserved
32
GND
Ground
GND
Ground
33-43
RSVD
Reserved
RSVD
Reserved
44
GND
Ground
GND
Ground
45
RSVD
Reserved
RSVD
Reserved
46
GND
Ground
GND
Ground
47-49
RSVD
Reserved
RSVD
Reserved
50
I2S_WA
I
2
S Word Alignment
19
/ GPIO
20
I2S_WA
I
2
S Word Alignment / GPIO
51
I2S_TXD
I
2
S Data Output
19
/ GPIO
20
I2S_TXD
I
2
S Data Output / GPIO
52
I2S_CLK
I
2
S Clock
19
/ GPIO
20
I2S_CLK
I
2
S Clock / GPIO
53
I2S_RXD
I
2
S Data Input
19
/ GPIO
20
I2S_RXD
I
2
S Data Input / GPIO
19
Not supported by “00” product versions
20
Not supported by “00”, “01”, “60” product versions