Z8F6422AR020SC2104 Zilog, Z8F6422AR020SC2104 Datasheet - Page 180

• Manufacturer Part Number: Z8F6422AR020SC2104
• Description: IC ENCORE MCU FLASH 64K 64LQFP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F6422AR020SC2104

• 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: 46
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 64-LQFP
• For Use With: 269-4678 - KIT DEV FOR Z8F642 MCU 44 PIN269-4677 - KIT DEV FOR Z8F642 MCU 28PIN269-4540 - KIT DEV FOR Z8 ENCORE 16K TO 64K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 269-3641

Table 80. DMAx Start/Current Address Low Byte Register (DMAxSTART)
Table 81. DMAx End Address Low Byte Register (DMAxEND)
PS019921-0308
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
DMAx Start/Current Address Low Byte Register
DMAx End Address Low Byte Register
7
7
The DMAx Start/Current Address Low register, in conjunction with the DMAx Address
High Nibble register, forms a 12-bit Start/Current Address. Writes to this register set the
Start Address for DMA operations. Each time the DMA completes a data transfer, the
12-bit Start/Current Address increments by either 1 (single-byte transfer) or 2 (two-byte
word transfer). Reads from this register return the low byte of the Current Address to be
used for the next DMA data transfer.
DMA_START—DMAx Start/Current Address Low
These bits, with the four lower bits of the DMAx_H register, form the 12-bit Start/Current
address. The full 12-bit address is given by {DMA_START_H[3:0], DMA_START[7:0]}.
The DMAx End Address Low Byte register
register
DMA_END—DMAx End Address Low
These bits, with the four upper bits of the DMAx_H register, form a 12-bit address. This
address is the ending location of the DMAx transfer. The full 12-bit address is given by
{DMA_END_H[3:0], DMA_END[7:0]}.
(Table
6
6
81), forms a 12-bit End Address.
5
5
DMA_START
4
4
FB4H, FBCH
FB3H, FBBH
DMA_END
R/W
R/W
X
X
(Table
3
3
80), in conjunction with the DMAx_H
Z8 Encore! XP
2
2
Direct Memory Access Controller
Product Specification
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1
®
F64XX Series
0
0
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