ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 118

• Manufacturer Part Number: ST7FOXK1
• Description: Low cost flash 8bit micro
• Manufacturer: STMicroelectronics

Specifications of ST7FOXK1

• 4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 1K write/erase cycles guaranteed Data retention
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
• A/d Converter: up to 10 input channels

On-chip peripherals
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Counter register (CR)
Alternate counter register (ACR)
These two read-only 16-bit registers contain the same value but with the difference that
reading the ACLR register does not clear the TOF bit (timer overflow flag), located in the
status register, (SR),
alternate counter register) on page
Writing in the CLR register or ACLR register resets the free running counter to the FFFCh
value. Both counters have a reset value of FFFCh (this is the only value which is reloaded in
the 16-bit timer). The reset value of both counters is also FFFCh in One Pulse mode and
PWM mode.
The timer clock depends on the clock control bits of the CR2 register, as illustrated in
Table
clock cycles depending on the CC[1:0] bits. The timer frequency can be f
f
CPU
/8 or an external frequency.
Counter high register (CHR) is the most significant byte (MSB).
Counter low register (CLR) is the least significant byte (LSB).
Alternate counter high register (ACHR) is the MSB.
Alternate counter low register (ACLR) is the LSB.
37. The value in the counter register repeats every 131 072, 262 144 or 524 288 CPU
(see16-bit read sequence (from either the counter register or the
120).
ST7FOXF1, ST7FOXK1, ST7FOXK2
CPU
/2, f
CPU
/4,