Step Technica MKY02, Руководство пользователя

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Chapter 2 MKY02 Hardware
2 - 5
Note: Pins prefixed with # are negative logic (active Low).
AX2 43 Positive I
Cascade clock input pin
For details, refer to
“3.2.2 Setting Cascade Clock and Baud Rate” .
#LEDRCV 44 Negative O
The LED driving output pin that keeps Low for a given time when an HLS packet is
received from any port.
This pin also keeps Low when a hardware reset is activated.
Leave this pin open when it is not used.
#LEDRZE 45 Negative O
The LED driving output pin that keeps Low for a given time when an error HLS packet is
received from any port.
This pin also keeps Low when a hardware reset is activated.
Leave this pin open when it is not used.
TEST1 46 Positive I
Be sure to connect this pin to GND pin (manufacturer test pin).
TEST2 47 Positive I
Be sure to connect this pin to GND pin (manufacturer test pin).
HC 50 Positive I
Be sure to fix this pin at High (This is input pin to set MKY02 as HLS HUB).
FH 51 Positive I
Input pin that selects MKY02 communication mode
Set this pin High when selecting Full-duplex mode, and Low when selecting half-duplex
mode.
BPS0 52 Positive I
Input pin that selects MKY02 baud rate
For details, refer to
“3.2.2 Setting Cascade Clock and Baud Rate”
.
BPS1 53 Positive I
Input pin that selects MKY02 baud rate
For details, refer to
“3.2.2 Setting Cascade Clock and Baud Rate”
.
COD2 54 Positive O
Output pin for cascade connection
Connect to the CID2 pin of the MKY02 for higher cascade connection.
Leave this pin open when it is not cascade-connected.
COP2 55 Positive O
Output pin for cascade connection
Connect to the CIP2 pin of the MKY02 for higher cascade connection.
Leave this pin open when it is not cascade-connected.
COE2 56 Positive O
Output pin for cascade connection
Connect to the CIE2 pin of the MKY02 for higher cascade connection.
Leave this pin open when it is not cascade-connected.
CIHR 57 Positive I
Input pin for cascade connection
Connect to the COHR pin of the MKY02 for higher cascade connection.
Fix this pin at Low when it is not cascade-connected.
CID1 58 Positive I
Input pin for cascade connection
Connect to the COD1 pin of the MKY02 for higher cascade connection.
Fix this pin at Low when it is not cascade-connected.
CIP1 59 Positive I
Input pin for cascade connection
Connect to the COP1 pin of the MKY02 for higher cascade connection.
Fix this pin at Low when it is not cascade-connected.
CIE1 60 Positive I
Input pin for cascade connection
Connect to the COE1 pin of the MKY02 for higher cascade connection.
Fix this pin at Low when it is not cascade-connected.
RXD0 61 Positive I
Input pin that inputs command packet (CP) from center IC
Connect this pin to output pin including receiver, etc.
TXE0 62 Positive O
This pin goes High when sending to the center IC is enabled.
Connect this pin to gate pin including driver, etc.
TXD0 63 Positive O
Pin that sends response packet (RP) to center IC
Connect this pin to drive input pin including driver, etc.
V
DD
10, 17, 32
38, 49, 64
--- ---
Power pins for 3.3-V supply.
GND
1, 16, 24,
33, 41, 48
--- ---
Power pins connected to 0V.
Table 2-1 Pin Functions of MKY02
Pin name Pin No. Logic I/O Function
(Continued)