ZLF645S0P2864G Zilog, ZLF645S0P2864G Datasheet - Page 147

• Manufacturer Part Number: ZLF645S0P2864G
• Description: Microcontrollers (MCU) 64K Flash 512B RAM 28 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2864G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 512 KB
• Interface Type: ICP, UART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Package / Case: PDIP-28
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details

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