RSK+RZA1H
5. User Circuitry
R20UT3007EG0200 Rev. 2.00
Page 24 of 53
May 17, 2015
5.13
LEDs
There are ten LEDs on the RSK. The function of each LED, its colour and connection are shown in Table 5.15.
LED
Colour
Function
MCU
Port
Pin
POWER_IN
Green
Indicates the status of the power connected to CN4.
-
-
POWER
Green
Indicates the status of the BOARD_5V (5V) power rail.
-
-
POWER
Green
Indicates the status of the BOARD_VCC (3.3V) power rail.
-
-
LED0
Green
User operated LED.
P7_1
H2
LED1
Orange
User operated LED.
*
*
LED2
Red
User operated LED.
*
*
LED3
Red
User operated LED.
*
*
LED4
Yellow
Ethernet Indication
-
-
LED5
Green
Ethernet Indication
-
-
LED6
Green
Ethernet Indication
-
-
*These LEDs are connected to port expander IC34’s I/O pin. See section 5.5 for further details.
Table 5.15: LED Connections
5.14
Reset Circuit
A reset control circuit is fitted to the RSK+ to generate the required reset signal, and is triggered from the RES
switch, power supply monitor and debugger connection. Refer to the RZ/A1H hardware manual for details
regarding the reset signal timing requirements and the RSK+ schematics for information regarding the reset
circuitry in use on the board.
5.15
Audio
The RSK+ board provides audio input via a 3.5mm Stereo jack, CN19 and audio output via 3.5mm stereo jack
CN20. It also incorporates an audio codec device, IC14 which is linked to the MCU via the signals described
in Table 5.16
Signal
Function
MCU
Port
Pin
SCL3
Clock Line
P1_6
A17
SDA3
Serial Data Line
P1_7
B16
IRQ_AUDIO
Hardware IRQ
P3_1
AA7
SSIWS0
Digital Audio Left-Right Clock IO
P4_5*
M20
SSISCK0
Digital Audio Bit Clock
P4_4*
M21
SSIRXD0
Digital Audio Serial Data ADC Output
P4_6*
L22
SSITXD0
Digital Audio Serial Data DAC Input
P4_7*
L20
*Connection to ports via multiplexer IC30. See section 5.20 for more details.
Table 5.16: Audio Codec Connections
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