S9S12GN16F0VLF Freescale Semiconductor, S9S12GN16F0VLF Datasheet - Page 1043

• Manufacturer Part Number: S9S12GN16F0VLF
• Description: 16-bit Microcontrollers - MCU 16-bit16k Flash 2k RAM
• Manufacturer: Freescale Semiconductor

Specifications of S9S12GN16F0VLF

• Rohs: yes
• Core: S12
• Processor Series: MC9S12G
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 16 KB
• Data Ram Size: 1024 B
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: TSSOP-20
• Mounting Style: SMD/SMT

All bits in the FCLKDIV register are readable, bit 7 is not writable, bit 6 is write-once-hi and controls the
writability of the FDIV field in normal mode. In special mode, bits 6-0 are writable any number of times
but bit 7 remains unwritable.
Freescale Semiconductor
FDIVLCK
FDIV[5:0]
FDIVLD
Offset Module Base + 0x0000
Reset
Field
5–0
7
6
W
R
FDIVLD
Clock Divider Loaded
0 FCLKDIV register has not been written since the last reset
1 FCLKDIV register has been written since the last reset
Clock Divider Locked
0 FDIV field is open for writing
1 FDIV value is locked and cannot be changed. Once the lock bit is set high, only reset can clear this bit and
Clock Divider Bits — FDIV[5:0] must be set to effectively divide BUSCLK down to 1 MHz to control timed events
during Flash program and erase algorithms.
BUSCLK frequency. Please refer to
0
7
restore writability to the FDIV field in normal mode.
The FCLKDIV register should never be written while a Flash command is
executing (CCIF=0).
FDIVLCK
= Unimplemented or Reserved
0
6
Figure 29-5. Flash Clock Divider Register (FCLKDIV)
MC9S12G Family Reference Manual, Rev.1.23
Table 29-7. FCLKDIV Field Descriptions
0
5
Section 29.4.4, “Flash Command Operations,”
CAUTION
Table 29-8
0
4
Description
shows recommended values for FDIV[5:0] based on the
0
3
FDIV[5:0]
128 KByte Flash Module (S12FTMRG128K1V1)
0
2
for more information.
0
1
0
0
1045