EZ80F93AZ020EC00TR Zilog, EZ80F93AZ020EC00TR Datasheet - Page 199

IC ACCLAIM MCU 64KB 100LQFP

EZ80F93AZ020EC00TR

Manufacturer Part Number
EZ80F93AZ020EC00TR
Description
IC ACCLAIM MCU 64KB 100LQFP
Manufacturer
Zilog
Series
eZ80® Acclaim!®r
Datasheets

Specifications of EZ80F93AZ020EC00TR

Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
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
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
EZ80F93AZ020EC00T

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EZ80F93AZ020EC00TR
Manufacturer:
Zilog
Quantity:
10 000
PS015313-0508
RAM Control Registers
RAM Control Register
The internal data RAM can be disabled by clearing the RAM_EN bit. The default, upon
RESET, is for RAM to be enabled.
Table 111. RAM Control Register; (RAM_CTL = 00B4h)
RAM Address Upper Byte Register
The RAM_ADDR_U register defines the upper byte of the address for the on-chip RAM.
If enabled, RAM addresses assume priority over all Chip Selects. The external Chip Select
signals are not asserted if the corresponding RAM address is enabled.
Table 112. RAM Address Upper Byte Register; (RAM_ADDR_U = 00B5h)
Bit
Reset
CPU Access
Note: R/W = Read/Write; R = Read Only.
Bit
Position
7
RAM_EN
[6:0]
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit
Position
[7:0]
RAM_ADDR_U
Value
0
1
0000000 Reserved
Value Description
00h–
FFh
R/W
R/W
This byte defines the upper byte of the RAM address. On-chip
RAM is prioritized over all Memory Chip Selects. If the enabled
RAM and Chip Select addresses overlap, the external Chip
Select is not asserted.
7
1
7
1
Description
On-chip general-purpose RAM is disabled
On-chip general-purpose RAM is enabled
R/W
R
6
0
6
1
R/W
R
5
0
5
1
R/W
R
4
0
4
1
R/W
R
3
0
3
1
Product Specification
Random Access Memory
R/W
R
2
0
2
1
eZ80F92/eZ80F93
R/W
R
1
0
1
1
R/W
R
0
0
0
1
192

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