S912XEG128J2MAA Datasheet, PDF (191/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 3 Memory Mapping Control (S12XMMCV4)
Table 3-3. External Input Signals Associated with the MMC
Signal
I/O
MODC
I
MODB
I
MODA
I
EROMCTL
I
ROMCTL
I
Description
Mode input
Mode input
Mode input
EROM control input
ROM control input
Availability
Latched after
RESET (active low)
Latched after
RESET (active low)
Latched after
RESET (active low)
Latched after
RESET (active low)
Latched after
RESET (active low)
Signal
CS0
CS1
CS2
CS3
Table 3-4. External Output Signals Associated with the MMC
Available in Modes
I/O
Description
NS
SS
NX
ES
EX
ST
O
Chip select line 0
O
Chip select line 1
O
Chip select line 2
O
Chip select line 3
(see Table 3-5)
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor
191