MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 604

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Memory Map and Registers
20.2.5 HFM Protection Register (HFM_PROT)
This register defines which flash array sectors are protected against program and erase.
The register is always readable. It is writable only when the LOCK bit in the CR register
is cleared. The PROT register's bits corresponding to unimplemented sectors become
reserved and always read 0.
This register's reset state is loaded from the flash array during reset.
Address: HFM_PROT – F400h base + 10h offset = F410h
* Notes:
•
604
Reset
Read
Write
PROTECT[15:0]
x = Undefined at reset.
Bit
Field
15–0
Field
15
x*
14
x*
The value loaded into SEC from the configuration field at reset determines the state of flash security at
reset.
CAUTION: If security is enabled and you want to perform product analysis, you must either disable
00
01
10
11
HFM Protection
Each HFM array sector can be protected from program and erase by setting a PROTECT[index] bit.
The PROT register controls the protection of 16 array sectors. The size of each array sector is 2K words
(4 KB). Refer to the following figure.
Flash unsecured (SECSTAT cleared at reset)
Flash unsecured (SECSTAT cleared at reset)
Flash secured (SECSTAT set at reset)
Flash unsecured (SECSTAT cleared at reset)
13
x*
12
x*
security using the back-door key or totally erase the array by performing either the lockout
recovery sequence or a mass erase followed by a read-verify.
HFM_SECL field descriptions (continued)
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
11
x*
HFM_PROT field descriptions
10
x*
x*
9
Preliminary
PROTECT[15:0]
x*
8
Description
Description
x*
7
x*
6
x*
5
x*
4
x*
3
Freescale Semiconductor
x*
2
x*
1
x*
0