S9S08AW16AE0MFT Freescale Semiconductor, S9S08AW16AE0MFT Datasheet - Page 58

• Manufacturer Part Number: S9S08AW16AE0MFT
• Description: MCU 16K FLASH AUTO MONET 48-QFN
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of S9S08AW16AE0MFT

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD. POR, PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-QFN Exposed Pad
• Controller Family/series: HCS08
• No. Of I/o's: 38
• Ram Memory Size: 1KB
• Cpu Speed: 40MHz
• No. Of Timers: 2
• Rohs Compliant: Yes
• Processor Series: S08AW
• Core: HCS08
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 2
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWS08
• Development Tools By Supplier: DEMO9S08AW60E
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Height: 1 mm
• Length: 7 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 7 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Chapter 4 Memory
4.6
The FLASH module has nine 8-bit registers in the high-page register space, three locations in the
nonvolatile register space in FLASH memory which are copied into three corresponding high-page control
registers at reset. There is also an 8-byte comparison key in FLASH memory. Refer to
Table 4-4
control bits only by their names. A Freescale-provided equate or header file normally is used to translate
these names into the appropriate absolute addresses.
4.6.1
Bit 7 of this register is a read-only status flag. Bits 6 through 0 may be read at any time but can be written
only one time. Before any erase or programming operations are possible, write to this register to set the
frequency of the clock for the nonvolatile memory system within acceptable limits.
Table 4-7
58
Reset
PRDIV8
DIV[5:0]
DIVLD
Field
5:0
7
6
W
R
FLASH Registers and Control Bits
for the absolute address assignments for all FLASH registers. This section refers to registers and
shows the appropriate values for PRDIV8 and DIV5:DIV0 for selected bus frequencies.
FLASH Clock Divider Register (FCDIV)
DIVLD
Divisor Loaded Status Flag — When set, this read-only status flag indicates that the FCDIV register has been
written since reset. Reset clears this bit and the first write to this register causes this bit to become set regardless
of the data written.
0 FCDIV has not been written since reset; erase and program operations disabled for FLASH.
1 FCDIV has been written since reset; erase and program operations enabled for FLASH.
Prescale (Divide) FLASH Clock by 8
0 Clock input to the FLASH clock divider is the bus rate clock.
1 Clock input to the FLASH clock divider is the bus rate clock divided by 8.
Divisor for FLASH Clock Divider — The FLASH clock divider divides the bus rate clock (or the bus rate clock
divided by 8 if PRDIV8 = 1) by the value in the 6-bit DIV5:DIV0 field plus one. The resulting frequency of the
internal FLASH clock must fall within the range of 200 kHz to 150 kHz for proper FLASH operations.
Program/Erase timing pulses are one cycle of this internal FLASH clock which corresponds to a range of 5 μs to
6.7 μs. The automated programming logic uses an integer number of these pulses to complete an erase or
program operation. See
0
7
= Unimplemented or Reserved
PRDIV8
if PRDIV8 = 1 — f
if PRDIV8 = 0 — f
0
6
Figure 4-6. FLASH Clock Divider Register (FCDIV)
Table 4-6. FCDIV Register Field Descriptions
Equation
DIV5
0
5
MC9S08AW60 Data Sheet, Rev 2
FCLK
4-1,
FCLK
Equation
= f
= f
Bus
DIV4
Bus
0
4
÷ (8 × ([DIV5:DIV0] + 1))
4-2, and
Description
÷ ([DIV5:DIV0] + 1)
Table
DIV3
3
0
4-6.
DIV2
0
2
Freescale Semiconductor
DIV1
Table 4-3
0
1
and
Eqn. 4-1
Eqn. 4-2
DIV0
0
0