Microchip Technology MCP212X, User Manual

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Installation and Operation
©
2006 Microchip Technology Inc. DS51571B-page 15
A description of the MCP212X Developer’s Daughter Board jumpers is given in
Table 2-2.
TABLE 2-2: JUMPER DESCRIPTIONS AND SETTINGS
Jumper # Description Comment
JP1A:JP2A To connect TXIR/RXIR of MCP2122 to TXD/RXD of
U5 (HSDL 3000)
S = TXIR/RXIR connected to TXD/RXD
O = TXIR/RXIR Not connected to TXD/RXD
By default not installed.
JP1B:JP2B To connect TXIR/RXIR of MCP2122 to TXD/RXD of
U5 (TFDU 4100)
S = TXIR/RXIR connected to TXD/RXD
O = TXIR/RXIR Not connected to TXD/RXD
By default not installed.
JP1C:JP2C To connect TXIR/RXIR of MCP2122 to TXD/RXD of
U5 (TFDU 4300)
S = TXIR/RXIR connected to TXD/RXD
O = TXIR/RXIR Not connected to TXD/RXD
By default not installed. PCB traces
short these jumpers (bottom of PCB)
JP1 Hardware control of Header RA0 signal and MCP2120
BAUD0 signal
S = Signal Connected to V
SS
O = Signal Connected to V
DD
JP2 Hardware control of Header RA1 signal and MCP2120
BAUD1 signal
S = Signal Connected to V
SS
O = Signal Connected to V
DD
JP3 Hardware control of Header RC0 signal and MCP2120
BAUD2 signal
S = Signal Connected to V
SS
O = Signal Connected to V
DD
JP4 Hardware control of Header RC1 signal and MCP2120
MODE signal
S = Signal Connected to V
SS
O = Signal Connected to V
DD
JP5 Hardware control of Header RA3 signal and MCP2120 EN
signal
S = Signal Connected to V
SS
O = Signal Connected to V
DD
JMP1 Connects MCP2120 RX signal to either Header 1’s RX
signal or Header 2/Header 3 RX signals
Note 1
JP6 Connects MCP2120 RX signal to Header 1’s TX signal Used when the MCP2120
communicates directly from the DB-9
connector.
(Note 1)
JMP2 Connects MCP2120 16XCLK signal to either Header 1’s
16XCLK signal or to Header 2/Header 3’s 16XCLK signals
JMP3 Connects MCP2120 TX signal to Header 1’s TX
signal or Header 2/Header 3 TX signals
Note 2
JP7 Connects MCP2120 TX signal to Header 1’s RX
signal
Used when the MCP2120
communicates directly from the DB-9
connector.
(Note 2)
Legend: S = Jumper is shorted (Closed) O = Jumper is Open
Note 1: The MCP2120’s RX signal is either connected via JMP1 or JP6 (but not both at the same time).
2: The MCP2120’s TX signal is either connected via JMP3 or JP7 (but not both at the same time).