EZ80F91AZ050EG Zilog, EZ80F91AZ050EG Datasheet - Page 262

• 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 146. ZDI Status Register
PS019215-0910
Bit
Reset
CPU Access
Note: R = Read Only.
Bit 
Position
7
zdi_active
6
5
halt_SLP
4
ADL
3
MADL
2
IEF1
[1:0]
Reserved
ZDI Status Register
The ZDI Status register provides current information on the eZ80F91 device and the CPU.
See
Table
Value Description
0
1
0
0
1
0
1
0
1
0
1
00
146.
R
7
0
The CPU is not functioning in ZDI mode.
The CPU is currently functioning in ZDI mode.
Reserved.
The CPU is not currently in HALT or SLEEP mode.
The CPU is currently in HALT or SLEEP mode.
The CPU is operating in Z80
(ADL bit = 0)
The CPU is operating in ADL MEMORY mode.
(ADL bit = 1)
The CPU’s Mixed-Memory mode (MADL) bit is reset to 0.
The CPU’s Mixed-Memory mode (MADL) bit is set to 1.
The CPU’s Interrupt Enable Flag 1 is reset to 0. Maskable
interrupts are disabled.
The CPU’s Interrupt Enable Flag 1 is set to 1. Maskable
interrupts are enabled.
Reserved.
R
(ZDI_STAT = 03h in the ZDI Register Read Only Address Space)
6
0
R
5
0
R
4
0
®
R
3
0
MEMORY mode.
R
2
0
R
1
0
Product Specification
R
0
0
Zilog Debug Interface
eZ80F91 MCU
253