Pins and Connections
MCF51CN128 Reference Manual, Rev. 6
2-30
Freescale Semiconductor
2.4
Basic System Connections
shows pin connections that are common to MCF51CN128 series application systems.
Figure NOTES:
1. The RESET pin can only reset the device into user mode. You can not enter BDM using the RESET
pin. BDM can be entered by holding MS low during POR or writing a 1 to BDM_RESET in the
ColdFire XCSR register with MS low after issuing BDM command.
2. RESET/PTC3 features an optional internal pullup device.
3. RC filter on RESET/PTC3 pin recommended for noisy environments.
Port PTJ2 Pin Mux Controls
00
PTJ2
01
Reserved
10
FB_A3/FB_AD3
11
Reserved
Port PTJ3 Pin Mux Controls
00
PTJ3
01
Reserved
10
FB_A2/FB_AD2
11
Reserved
Port PTJ4 Pin Mux Controls
00
PTJ4
01
Reserved
10
FB_A1/FB_AD1
11
Reserved
Port PTJ5 Pin Mux Controls
00
PTJ5
01
Reserved
10
FB_A0/FB_AD0
11
Reserved
Table 2-21. Pin Mux Control Register Bits (continued)
Register Bit
Mux Control
