EZ80F91AZA50EG Zilog, EZ80F91AZA50EG Datasheet - Page 172

• Manufacturer Part Number: EZ80F91AZA50EG
• Description: IC ACCLAIM MCU 256KB 144LQFP
• Manufacturer: Zilog
• Series: eZ80® AcclaimPlus!™r

Specifications of EZ80F91AZA50EG

• 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
• 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: 269-4563

Table 83. Real-Time Clock Day-of-the-Week Register (RTC_DOW = 00E3h)
PS027001-0707
Bit
Reset
CPU Access
Note: X = Unchanged by RESET; R = Read Only; R/W* = Read Only if RTC locked, Read/Write
Binary-Coded Decimal Operation (BCD_EN = 1)
Bit Position
[7:4]
[3:0]
DOW
Binary Operation (BCD_EN = 0)
Bit Position
[7:4]
[3:0]
DOW
if RTC unlocked.
Real-Time Clock Day-of-the-Week Register
This register contains the current day-of-the-week count. The RTC_DOW register begins
counting at
current setting of BCD_EN determines whether the value in this register is binary
(BCD_EN = 0) or binary-coded decimal (BCD_EN = 1). Access to this register is Read
Only if the RTC is locked and Read/Write if the RTC is unlocked. See
Value Description
0000
1–7
Value
0000
01h–07h The current day-of-the-week count.
Reserved.
The current day-of-the-week.count.
01h
Description
Reserved.
. The value in the RTC_DOW register is unchanged by a RESET. The
R
7
0
R
6
0
R
5
0
R
4
0
R/W*
X
3
R/W*
Product Specification
X
2
Table
eZ80F91 ASSP
R/W*
X
Real-Time Clock
1
83.
R/W*
X
0
164