MC908GR32AVFAE Freescale Semiconductor, MC908GR32AVFAE Datasheet - Page 50

• Manufacturer Part Number: MC908GR32AVFAE
• Description: IC MCU 8BIT 32K FLASH 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908GR32AVFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 48-LQFP
• Controller Family/series: HC08
• No. Of I/o's: 37
• Ram Memory Size: 1.5KB
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08GR
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: ESCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 8
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 24 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Memory
2.7 FLASH-2 Memory (FLASH-2)
This subsection describes the operation of the embedded FLASH-2 memory. This memory can be read,
programmed, and erased from a single external supply. The program and erase operations are enabled
through the use of an internal charge pump.
2.7.1 Functional Description
The FLASH-2 memory is a non-continuous array consisting of a total of 29,822 bytes. An erased bit reads
as a 1 and a programmed bit reads as a 0.
Memory in the FLASH-2 array is organized into rows within pages. There are two rows of memory per
page with 64 bytes per row. The minimum erase block size is a single page,128 bytes. Programming is
performed on a per-row basis, 64 bytes at a time. Program and erase operations are facilitated through
control bits in the FLASH-2 control register (FL2CR). Details for these operations appear later in this
subsection.
The FLASH-2 memory map consists of:
Programming tools are available from Freescale Semiconductor. Contact your local representative for
more information.
2.7.2 FLASH-2 Control and Block Protect Registers
The FLASH-2 array has two registers that control its operation, the FLASH-2 control register (FL2CR) and
the FLASH-2 block protect register (FL2BPR).
2.7.2.1 FLASH-2 Control Register
The FLASH-2 control register (FL2CR) controls FLASH-2 program and erase operations.
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the FLASH difficult for
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unauthorized users.
•
•
•
•
•
$0462–$04FF: user memory (158 bytes)
$0980–$1B7F: user memory (4608 bytes)
$1E20–$7FFF: user memory (25056 bytes)
$FF81: FLASH-2 block protect register (FL2BPR)
$FE08: FLASH-2 control register (FL2CR)
Address:
Reset:
Read:
Write:
FL2BPR physically resides within FLASH-1 memory addressing space
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
A security feature prevents viewing of the FLASH contents.
$FE08
Bit 7
0
0
Figure 2-7. FLASH-2 Control Register (FL2CR)
= Unimplemented
6
0
0
5
0
0
NOTE
NOTE
4
0
0
HVEN
3
0
MASS
2
0
ERASE
1
0
(1)
Freescale Semiconductor
PGM
Bit 0
0