EZ80F91NAA50EG Zilog, EZ80F91NAA50EG Datasheet - Page 325

• Manufacturer Part Number: EZ80F91NAA50EG
• Description: IC ACCLAIM MCU 256KB 144BGA
• Manufacturer: Zilog
• Series: eZ80® AcclaimPlus!™r

Specifications of EZ80F91NAA50EG

• 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-LBGA
• Processor Series: EZ80F91x
• Core: eZ80
• Data Bus Width: 8 bit
• Data Ram Size: 8 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, eZ80F910200KITG
• 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: 269-4565

Table 198. EMAC MII Management Register (EMAC_MIIMGT = 003Bh)
PS027001-0707
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit
Position
7
LCTLD
6
RSTAT
5
SCINC
4
SCAN
3
SPRE
EMAC MII Management Register
The EMAC MII Management Register is used to control the external PHY attached to the
MII. See
Value
1
0
1
0
1
0
1
0
1
0
Table
R/W
Description
Rising edge causes the CTLD control data to be transmitted to
external PHY if MII is not busy. This bit is self clearing.
No operation.
Rising edge causes status to be read from external PHY via
PRSD[15:0] bus if MII is not busy. This bit is self clearing.
No operation.
Scan PHY address increments upon SCAN cycle. The SCAN
bit must also be set for the PHY address to increment after
each scan. The scanning starts at the EMAC_FIAD and
increments up to 1Fh. It then returns to the EMAC_FIAD
address.
Normal operation.
Perform continuous Read cycles via MII management. While in
SCAN mode, the EMAC_ISTAT[MGTDONE] bit is set when the
current PHY Read has completed. At this time, the
EMAC_PRSD register holds the Read data and the
EMAC_MIISTAT[4:0] holds the address of the PHY for which
the EMAC_PRSD data pertains.
Normal operation.
Suppress the MDO preamble. MDO is management data
output, an internal signal driven from the MDIO pin.
Normal preamble.
7
0
198.
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
0
R/W
2
0
R/W
Ethernet Media Access Controller
1
0
Product Specification
R/W
0
0
eZ80F91 ASSP
317