MC9S08RE16FDE Freescale Semiconductor, MC9S08RE16FDE Datasheet - Page 38
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MC9S08RE16FDE
Manufacturer Part Number
MC9S08RE16FDE
Description
IC MCU 16K FLASH 1K RAM 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Specifications of MC9S08RE16FDE
Core Processor
HCS08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
48-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Memory
4.2
The registers in the MC9S08RC/RD/RE/RG are divided into these three groups:
Direct-page registers can be accessed with efficient direct addressing mode instructions. Bit manipulation
instructions can be used to access any bit in any direct-page register.
user-accessible direct-page registers and control bits.
The direct page registers in
only the lower byte of the address. Because of this, the lower byte of the address in column one is shown
in bold text. In
Table
bit names to the right. Cells that are not associated with named bits are shaded. A shaded cell with a 0
indicates this unused bit always reads as a 0. Shaded cells with dashes indicate unused or reserved bit
locations that could read as 1s or 0s.
38
•
•
•
4-2, and
Direct-page registers are located within the first 256 locations in the memory map, so they are
accessible with efficient direct addressing mode instructions.
High-page registers are used much less often, so they are located above $1800 in the memory map.
This leaves more room in the direct page for more frequently used registers and variables.
The nonvolatile register area consists of a block of 16 locations in FLASH memory at
$FFB0–$FFBF.
Nonvolatile register locations include:
— Three values that are loaded into working registers at reset
— An 8-byte backdoor comparison key that optionally allows a user to gain controlled access to
Because the nonvolatile register locations are FLASH memory, they must be erased and
programmed like other FLASH memory locations.
Register Addresses and Bit Assignments
secure memory
Table
Table 4-2
4-3, the register names in column two are shown in bold to set them apart from the
and
Table 4-1
Table
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
4-3, the whole address in column one is shown in bold. In
can use the more efficient direct addressing mode, which requires
Table 4-1
is a summary of all
Freescale Semiconductor
Table
4-1,
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