EZ80F91AZ050EG Zilog, EZ80F91AZ050EG Datasheet - Page 46

• Manufacturer Part Number: EZ80F91AZ050EG
• Description: IC ACCLAIM MCU 256KB 144LQFP
• Manufacturer: Zilog
• Series: eZ80® Acclaim!®r

Specifications of EZ80F91AZ050EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: Ethernet, I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Processor Series: EZ80F91x
• Core: eZ80
• Data Bus Width: 8 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, IrDA, SPI, UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: eZ80F910300ZCOG
• Minimum Operating Temperature: - 40 C
• For Use With: 269-4712 - KIT DEV ENCORE 32 SERIES269-4671 - BOARD ZDOTS SBC Z80ACCLAIM PLUS269-4561 - KIT DEV FOR EZ80F91 W/C-COMPILER269-4560 - KIT DEV FOR EZ80F91 W/C-COMPILER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-3867; EZ80F91AZ050EG

Table 3. Register Map (Continued)
PS019215-0910
Address
(hex)
00DB
00DC
Real-Time Clock
00E0
00E1
00E2
00E3
00E4
00E5
00E6
00E7
00E8
00E9
00EA
00EB
00EC
00ED
Chip Select Bus Mode Control
00F0
00F1
00F2
00F3
Mnemonic
CLK_PPD1
CLK_PPD2
RTC_SEC
RTC_MIN
RTC_HRS
RTC_DOW
RTC_DOM
RTC_MON
RTC_YR
RTC_CEN
RTC_ASEC
RTC_AMIN
RTC_AHRS
RTC_ADOW
RTC_ACTRL
RTC_CTRL
CS0_BMC
CS1_BMC
CS2_BMC
CS3_BMC
Name
Clock Peripheral Power-Down 
Register 1
Clock Peripheral Power-Down
Register 2
RTC Seconds Register
RTC Minutes Register
RTC Hours Register
RTC Day-of-the-Week Register
RTC Day-of-the-Month Register
RTC Month Register
RTC Year Register
RTC Century Register
RTC Alarm Seconds Register
RTC Alarm Minutes Register
RTC Alarm Hours Register
RTC Alarm Day-of-the-Week Register
RTC Alarm Control Register
RTC Control Register
Chip Select 0 Bus Mode Control
Register
Chip Select 1 Bus Mode Control
Register
Chip Select 2 Bus Mode Control
Register
Chip Select 3 Bus Mode Control
Register
x0xxxx00
x0xxxx10
Reset
(hex)
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
0X
0X
00
00
00
02
02
02
02
b
b/
Product Specification
4
Access
CPU
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
eZ80F91 MCU
Register Map
Page
161
162
163
164
165
166
167
168
169
170
171
172
173
174
No
47
48
88
88
88
88
37