EZ80F91NA050SC Zilog, EZ80F91NA050SC Datasheet - Page 327

• 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 205. EMAC Transmit Lower Boundary Pointer Register—Low Byte (EMAC_TLBP_L = 0042h)
Table 206. EMAC Transmit Lower Boundary Pointer Register—High Byte (EMAC_TLBP_H
= 0043h)*
PS019215-0910
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit 
Position
[7:0]
EMAC_TLBP_L
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit 
Position
[7:0]
EMAC_TLBP_H
Note: *Bits 7:5 are not used by the EMAC; these bits return 000.
EMAC Transmit Lower Boundary Pointer Register—Low and High Bytes
The EMAC Transmit Lower Boundary Pointer is set to the start of the Transmit buffer in
EMAC shared memory. See
Value
00h–
FFh
Value
00h–
FFh
R/W
R
7
0
7
1
Description
These bits represent the Low byte of the 2 byte Transmit
Lower Boundary Pointer value, {EMAC_TLBP_H,
EMAC_TLBP_L}. Bit 7 is bit 7 of the 16 bit value. Bit 0 is bit 0
(lsb) of the 16 bit value.
Description
These bits represent the High byte of the 2 byte Transmit
Lower Boundary Pointer value, {EMAC_TLBP_H,
EMAC_TLBP_L}. Bit 7 is bit 15 (msb) of the 16 bit value. Bits
7:5 default to 000 on reset; bit 0 is bit 8 of the 16-bit value.
R/W
R
6
0
6
1
R/W
R
5
0
5
0
Table 205
R/W
R
4
0
4
0
and
R/W
Table
R
3
0
3
0
206.
R/W
R
2
0
2
0
R/W
Ethernet Media Access Controller
R
1
0
1
0
Product Specification
R/W
R
0
0
0
0
318