MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 136

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Chip Configuration Module (CCM)
Advance Information
136
Once reset is exited, the states of the CSEN and PS bits in CSCR0 and
the CSEN bit in CSCR1 remain, but can be modified by software.
The boot device selection during reset configuration is summarized in
Table
Chip select disabled (32-bit port size)
Chip select enabled with 16-bit port size
Chip select enabled with 32-bit port size
Internal boot device;
default 32-bit port
External boot device
with 16-bit port
External boot device
with 32-bit port
Boot Device Selection
1. CSCR1 CSEN is initially set only in emulation mode when booting from internal memory
1. Modifying the default configurations is possible only if the external RCON pin is asserted.
Freescale Semiconductor, Inc.
and is cleared otherwise.
For More Information On This Product,
4-10.
Table 4-9. Chip Select CS0 Configuration Encoding
Chip Select CS0 Control
Chip Configuration Module (CCM)
Go to: www.freescale.com
Table 4-10. Boot Device Selection
D18 driven low
D18 driven high
D18 driven high
CSEN Bit
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
Register
CSCR0
D19 don’t care
D19 driven low
D19 driven high
CSEN Bit
PS Bit
0
1
1
Register
CSCR0
(1)
PS Bit
D18 driven low
D18 driven high
D18 driven high
1
0
1
CSEN Bit
Register
CSCR1
MOTOROLA
CSEN Bit
Register
CSCR1
1
0
0
(1)