Z8F3201VN020EC00TR Zilog, Z8F3201VN020EC00TR Datasheet - Page 165

• Manufacturer Part Number: Z8F3201VN020EC00TR
• Description: IC ENCORE MCU FLASH 32K 44PLCC
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F3201VN020EC00TR

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: Z8F3201VN020EC00T

Table 88. Flash Frequency High Byte Register (FFREQH)
Table 89. Flash Frequency Low Byte Register (FFREQL)
PS017610-0404
RESET
RESET
FIELD
FIELD
ADDR
ADDR
BITS
BITS
R/W
R/W
FFREQ[15:0]
Flash Frequency High and Low Byte Registers
Caution:
R/W
R/W
7
0
7
0
The Flash Frequency High and Low Byte registers combine to form a 16-bit value,
FFREQ, to control timing for Flash program and erase operations. The 16-bit binary Flash
Frequency value must contain the system clock frequency (in kHz) and is calculated using
the following equation:.
FFREQH—Flash Frequency High Byte
High byte of the 16-bit Flash Frequency value.
FFREQL—Flash Frequency Low Byte
Low byte of the 16-bit Flash Frequency value.
Flash programming and erasure is not supported for system clock frequen-
cies below 32KHz (32768Hz) or above 20MHz. The Flash Frequency
High and Low Byte registers must be loaded with the correct value to in-
sure proper operation of the Z8F640x family device.
=
R/W
R/W
6
0
6
0
{
FFREQH[7:0],FFREQL[7:0]
R/W
R/W
5
0
5
0
R/W
R/W
4
4
0
0
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
FFREQH
FFREQL
FFAH
FFBH
R/W
R/W
3
0
3
0
}
=
System Clock Frequency
-------------------------------------------------------------- -
R/W
R/W
2
2
0
0
1000
R/W
R/W
1
0
1
0
Z8 Encore!
Flash Memory
R/W
R/W
0
0
0
0
®
147