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Communication Processor Module
The modem control pins for the SCC2 in NMSI mode are as follows:
• TXD2
• RXD2
• TCLK2 ← BRG1–BRG4, CLK1–4
• RCLK2 ← BRG1–BRG4, CLK1–4
• RTS2
• CTS2
• CD2
The modem control pins for the SCC3 in NMSI mode are as follows:
• TXD3
• RXD3
• TCLK3 ← BRG1–BRG4, CLK1–4
• RCLK3 ← BRG1–BRG4, CLK1–4
• RTS3
• CTS3
• CD3
The modem control pins for the SMC1 in NMSI mode are as follows:
• SMTXD1
• SMRXD1
• SMCLK1 ← BRG1–BRG4, CLK1–4
• SMSYN1 (used only in the totally transparent protocol)
The modem control pins for the SMC2 in NMSI mode are as follows:
• SMTXD2
• SMRXD2
• SMCLK2 ← BRG1–BRG4, CLK1–4
• SMSYN2 (used only in the totally transparent protocol)
Unused USB, SCC or SMC signals can be used for other functions or configured for parallel
I/O.
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MPC823e REFERENCE MANUAL
MOTOROLA
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