EZ80F91NA050SC Zilog, EZ80F91NA050SC Datasheet - Page 171

• Manufacturer Part Number: EZ80F91NA050SC
• Description: IC ACCLAIM MCU 256KB 144-BGA
• Manufacturer: Zilog
• Series: eZ80® Acclaim!®r

Specifications of EZ80F91NA050SC

• 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: 0°C ~ 70°C
• Package / Case: 144-LBGA
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 50 MHz
• Data Ram Size: 16 KB
• Number Of Programmable I/os: 32
• Number Of Timers: 16 Bit
• Operating Supply Voltage: 3 V to 3.6 V
• Mounting Style: SMD/SMT
• Height: 1.5 mm
• Length: 13 mm
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Width: 13 mm
• 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No RoHS Version Available
• Other names: 269-3251

Table 81. Real-Time Clock Minutes Register
PS019215-0910
Bit
Reset
CPU Access
Note: X = Unchanged by RESET; R/W* = Read Only if RTC locked, Read/Write if RTC unlocked.
Binary-Coded Decimal Operation (BCD_EN = 1)
Bit Position
[7:4]
TEN_MIN
[3:0]
MIN
Binary Operation (BCD_EN = 0)
Bit Position
[7:0]
MIN
Real-Time Clock Minutes Register
This register contains the current minutes count. The value in the RTC_MIN register is 
unchanged by a RESET. The current setting of BCD_EN determines whether the values
in this register are 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
00h–3Bh The current minutes count.
Value Description
0–5
0–9
R/W*
The tens digit of the current minutes count.
The ones digit of the current minutes count.
X
7
Description
Table
R/W*
X
6
81.
R/W*
X
5
R/W*
(RTC_MIN = 00E1h)
X
4
R/W*
X
3
R/W*
X
2
R/W*
X
1
Product Specification
R/W*
X
0
Real-Time Clock
162