Smart Module Series
SC200K_Series_Hardware_Design 22 / 105
VOL_UP
95
DI
Volume up
V
IL
max = 0.48 V
V
IH
min = 1.39 V
If unused, keep it
open.
1.85 V power domain.
VOL_DOWN
96
DI
Volume down
If unused, keep it
open.
Cannot pull it down
when turning on the
module.
1.85 V power domain.
RESET_N
225
DI
Reset the module
V
IL
max = 0.60 V
V
IH
min = 1.30 V
Active low.
Disabled by default,
can be enabled by
software.
CBL_PWR_N
186
DI
Initiates power-on
when grounded
USB Interfaces
Pin Name
Pin
No.
I/O
Description
DC
Characteristics
Comment
USB_VBUS
141,
142
PI
Charging power input.
USB insertion
detection.
Vmax = 9.20 V
Vmin = 4.50 V
Vnom = 5.00 V
Used for USB 5 V
power input.
USB1_DM
13
AIO
USB1 2.0 differential
data (-)
USB 2.0 compliant.
Require differential
impedance of 90 Ω.
Supports host and
device modes.
External USB hub
expansion is not
supported.
USB1_DP
14
AIO
USB1 2.0 differential
data (+)
USB2_DM
174
AIO
USB2 2.0 differential
data (-)
USB 2.0 compliant.
Require differential
impedance of 90 Ω.
Supports host mode
only.
External USB hub
expansion is
supported.
USB2_DP
173
AIO
USB2 2.0 differential
data (+)
USB_CC1
151
AI
USB1 Type-C detect
1
USB_CC2
150
AI
USB1 Type-C detect
2
USB_ID
16
DI
USB1 ID detect
High level by default.
If unused, keep it