EZ80F91AZ050EG Zilog, EZ80F91AZ050EG Datasheet - Page 260

• 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 142. ZDI Write Memory Register
Address Space)
Table 143. eZ80 Product ID Low Byte Register
Address Space, ZDI_ID_L = 0000h in the I/O Register Address Space)
PS019215-0910
Bit
Reset
CPU Access
Note: X = Undefined; W = Write.
Bit 
Position
[7:0]
zdi_wr_mem
Bit
Reset
CPU Access
Note: R = Read Only.
Bit 
Position
[7:0]
zdi_id_l
eZ80
The eZ80 Product ID Low and High Byte registers combine to provide a means for an
external device to determine the particular eZ80 product being addressed. See
and
Table 144
®
Value
00h–FFh The 8-bit data that is transferred to the ZDI slave
Value Description
08h
Product ID Low and High Byte Registers
W
X
R
7
7
0
{ZDI_ID_H, ZDI_ID_L} = {00h, 08h} indicates the eZ80F91
product.
on page 252.
Description
following a Write to this address is written to the address
indicated by the current Program Counter. The Program
Counter is incremented following each 8 bits of data. In
Z80
transferred data. In ADL MEMORY mode, (PC[23:0])
8-bits of transferred data.
W
X
R
6
6
0
®
MEMORY mode, ({MBASE, PC[15:0]})
W
X
R
5
5
0
(ZDI_WR_MEM = 30h in the ZDI Register Write Only
W
X
R
4
4
0
(ZDI_ID_L = 00h in the ZDI Register Read Only
W
R
X
3
3
1
W
R
X
2
2
0
W
R
X
1
1
0

Product Specification
8 bits of
W
R
X
0
0
0

Zilog Debug Interface
eZ80F91 MCU
Table 143
251