Z16FMC64AG20SG Zilog, Z16FMC64AG20SG Datasheet - Page 37

• Manufacturer Part Number: Z16FMC64AG20SG
• Description: Microcontrollers (MCU) 16BIT 64K FL 4K RAM 2UART 12CH 10BIT A/D
• Manufacturer: Zilog
• Series: Z16FMCr

Specifications of Z16FMC64AG20SG

• Processor Series: Z16FMC
• Core: ZNEO
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 4 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

Endianness
Bus Widths
PS028702-1210
Table 4. ZNeo CPU Control Registers
The Z16FMC CPU accesses data in big endian order, i.e., the address of a multi-byte word
or quad points to the most significant byte. Figure 4 displays the Endianness of the CPU.
The ZNeo CPU accesses 8-bit or 16-bit memories. The data buses of the internal non-vol-
atile memory and internal RAM are 16-bit wide. The internal peripherals are a mix of 8-bit
and 16-bit peripherals.
If a Word or Quad operation occurs on a 16-bit wide memory, the number of memory
accesses depends on the alignment of the address. If the address is aligned on an even
Address (Hex)
FF_E004-FF_E007
FF_E00C-FF_E00F
FF_E010
FF_E012
Figure 4. Endianness of Words and Quads
Address
of Word
Address
of Quad
P R E L I M I N A R Y
Register Description
Program counter overflow
Stack pointer overflow
Flags
CPU control
MSB
MSB
LSB
LSB
00_0081H
00_0080H
00_0083H
00_0082H
00_0081H
00_0080H
Z16FMC Series Motor Control MCUs
Register Mnemonic
PCOV
SPOV
FLAGS
CPUCTL
Product Specification
Address Space
15