Z16FMC32AG20SG Zilog, Z16FMC32AG20SG Datasheet - Page 265

• Manufacturer Part Number: Z16FMC32AG20SG
• Description: Microcontrollers (MCU) 16BIT 32K FL 2K RAM 2UART 12CH 10BIT A/D
• Manufacturer: Zilog
• Series: Z16FMCr

Specifications of Z16FMC32AG20SG

• Processor Series: Z16FMC
• Core: ZNEO
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 32 KB
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 46
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-64
• Development Tools By Supplier: Z16FMC28200KITG
• Minimum Operating Temperature: 0 C
• Core Processor: ZNEO
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 46
• Eeprom Size: -
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Lead Free Status / Rohs Status: Details

PS028702-1210
Programming
Caution:
Flash Sector Protection
The Flash Sector Protect register is configured to prevent sectors from being programmed
or erased. After a sector is protected, it cannot be unprotected by user code. The Flash Sec-
tor Protect register is cleared after reset and any previously written protection values will
be lost. User code must write this register in their initialization routine if they want to
enable sector protection.
When user code writes the Flash Sector Protect register, bits are set to 1 only. Thus, sectors
are protected, but not unprotected, using register write operations.
Flash Write Protection Option Bit
The Flash Write Protect option bit is enabled to block all program and erase operations
from user code. For detailed information, see the
When the Flash Controller is unlocked, word writes to Program memory from user code
programs a word into the Flash if the address is located in the unlocked page. An erased
Flash word contains all ones (
from one to zero. To change a Flash bit (or multiple bits) from zero to one requires a Page
Erase or Mass Erase operation.
The Flash must be programmed one word (16 bits) at a time. If a byte (8-bit) write to Flash
memory occurs, the Flash controller waits until the other byte within the word is written
before beginning the programming operation.
While the Flash Controller programs the Flash memory, Flash reads are held in wait. If the
CPU is fetching instruction from Flash, the CPU idles until the programming operation is
complete. Interrupts that occur when a programming operation is in progress are serviced
after the programming operation is complete. To exit Programming mode and lock the
Flash Controller, write
User code cannot program Flash Memory on a page that lies in a protected sector. When
user code writes memory locations, only addresses located in the unlocked page are pro-
grammed. Memory writes outside of the unlocked page are ignored.
Observe the following steps to program the Flash from user code:
1. Write the page of memory to be programmed to the Flash Page Select register.
2. Write the first unlock command
3. Write the second unlock command
Each memory location must not be programmed more than twice before an erase
occurs.
00H
P R E L I M I N A R Y
to the Flash Command register.
FFFFH
73H
). The programming operation is used to change bits
8CH
to the Flash Command register.
to the Flash Command register.
Z16FMC Series Motor Control MCUs
Option Bits
chapter on page 249.
Product Specification
Flash Memory
243