MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 340

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

D.3 Standby RAM Module
D.3.1 RAM Module Configuration Register
RAMMCR — RAM Module Configuration Register
STOP — Low-Power Stop Mode Enable
RLCK — RAM Base Address Lock
RASP[1:0] — RAM Array Space
D-22
MOTOROLA
RESET:
STOP
15
1
Table D-19 shows the SRAM address map. SRAM control registers are accessible at
the supervisor privilege level only.
This bit controls whether SRAM operates normally or enters low-power stop mode. In
low-power stop mode, the array retains its contents, but cannot be read or written.
RLCK defaults to zero on reset; it can be written once to one
The RASP field limits access to the SRAM array to one of four CPU32 address spaces.
Refer to Table D-20.
0 = SRAM operates normally.
1 = SRAM enters low-power stop mode.
0 = SRAM base address registers can be written.
1 = SRAM base address registers are locked.
0
0
NOTES:
Address
$YFFB40
$YFFB42
$YFFB44
$YFFB46
1. Y = M111, where M is the logic state of the module mapping (MM) bit in the SIMCR.
0
0
1
0
0
RLCK
RASP[1:0]
15
11
0
Table D-19 SRAM Address Map
00
01
10
11
Table D-20 RASP Encoding
0
0
RAM Array Base Address Register High (RAMBAH)
RAM Array Base Address Register Low (RAMBAL)
RAM Module Configuration Register (RAMMCR)
REGISTER SUMMARY
9
1
RASP[1:0]
Unrestricted program and data
Supervisor program and data
RAM Test Register (RAMTST)
Unrestricted program
Supervisor program
8
1
Space
0
0
0
NOT USED
0
0
USER’S MANUAL
0
MC68336/376
0
$YFFB40
0
0
0