ZLF645E0H4864G Zilog, ZLF645E0H4864G Datasheet - Page 147

• Manufacturer Part Number: ZLF645E0H4864G
• Description: IC MCU 64K FLASH 1K RAM 48-SSOP
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0H4864G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 40
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4720

ZLF645 Series Flash MCUs
Product Specification
139
SMR Register Events
The SMR register function is similar to the standard Stop Mode Recovery feature used in
®
previous Z8
CPU-compatible parts. Register bits SMR[4:2] are set to select one of six
event modes, as displayed in
Figure 44
on page 140. The output of the corresponding logic
is compared to the state of SMR[6]; when they are the same, a Stop Mode Recovery event
is generated. If SMR[4:2]=000, no event source is selected by SMR.
The state SMR[4:2]=001 is reserved and selects no event in this device. The logic config-
ured by the SMR register ignores any port pins that are configured as output or selected as
source pins in registers SMR1 or SMR3. The SMR register is summarized in
Table 70 on
page
141.
PS026407-0408
Reset/Stop Mode Recovery Status