Motorola ColdFire MCF5281 - Manual (Page 257)

Signal Descriptions
Freescale Semiconductor 14-17
14.1.1 Single-Chip Mode
In single-chip mode, signals default to GPIO inputs after a system reset. Table 14-4 is a listing of signals
that do not default to a GPIO function.
P8 VSSPLL — — PLL ground I —
A6:C11 VPP — — Flash (stress) programming
voltage I —
A12:C5:D5:D11 VDDF — — Flash positive supply I —
B5:B12: VSSF — — Flash module ground I —
N11 VSTBY — — Standby power I —
E6-E11:F5:F7-F10:
F12:G5:G6:G11:
G12:H5:H6:H11:
H12:J5:J6:J11:J12:
K5:K6:K11:K12:L5:
L7-L10:L12:
M6-M11
VDD — — Positive supply I —
A1:A16:E5:E12:F6:
F11:G7-G10:H7-H10
:J7-J10:K7-K10:L6:
L11:M5:M12:T16
VSS — — Ground I —
1
Pull-ups are not active when GPIO functions are selected for the pins.
2 The primary functionality of a pin is not necessarily its default functionality. Pins that have GPIO functionality will default to
GPIO inputs.
3
Pull-up is active only with the SYNCA function.
4
Pull-up is active only with the SYNCB function.
5
Pull-up is active only with the SDA function.
6 Pull-up is active only with SCL function.
7
Pull-up is active when JTAG_EN is driven high.
Table 14-4. Pin Reset States at Reset (Single-Chip Mode)
Signal Reset I/O
Clock and Reset Signals
RSTI — I
RSTO Low O
EXTAL — I
XTAL XTAL O
CLKOUT CLKOUT O
Table 14-3. MCF5282 Signals and Pin Numbers Sorted by Function (continued)
MAPBGA Pin
Pin Functions
Description
Primary
I/O
Internal
Pull-up
1
Primary 2 Secondary Tertiary
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3