Z8FS040BSB20EG Zilog, Z8FS040BSB20EG Datasheet - Page 39

• Manufacturer Part Number: Z8FS040BSB20EG
• Description: IC MCU 4KB FLASH IRDA 8SOIC
• Manufacturer: Zilog
• Series: ZMOTION™r

Specifications of Z8FS040BSB20EG

• Applications: Infrared Motion Detection
• Core Processor: eZ8
• Program Memory Type: FLASH (4 kB)
• Controller Series: Z8 Encore! XP®
• Interface: IrDA, UART/USART
• Number Of I /o: 5
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Ram Size: -
• Other names: 269-2512

Address
Address
PIR Signal (ePIR_Signal)
PIR Signal (Bits 0-15)
PIR DC Signal Level (ePIR_Signal_DC)
PIR Signal DC Level (Bits 0-15)
PS028506-1110
Control
Control
Field
Field
Bit
Bit
Controlled by PIR engine
These registers contain the last PIR signal obtained by the engine. Each time the engine generates a
new PIR signal sample it will place it in these registers and set the New Sample bit in the PIR Advanced
Status/Control 0 Register. This gives the application direct visibility to the PIR generated signal for
debugging purposes.
Note: The 16 bit value provided by these two 8 bit registers must be read as an atomic operation by the
application. This can be ensured by either using the CPU’s ATM instruction or by disabling interrupts
while reading the two 8 bit registers.
Controlled by PIR engine
These registers contain the last PIR signal DC Level calculated by the engine. Each time the engine
generates new control limits it will place the DC component level in these registers.
Note: The 16 bit value provided by these two 8 bit registers must be read as an atomic operation by the
application. This can be ensured by either using the CPU’s ATM instruction or by disabling interrupts
while reading the two 8 bit registers.
15
15
Medium
Large
14
14
13
13
12
12
FCH
FAH
11
11
10
10
1Dh
46h
PRELIMINARY
9
9
PIR Signal DC
PIR Signal
8
8
Read
Read
7
7
ZMOTION
6
6
5
5
TM
Detection and Control Family
12h
2D
4
4
FDH
FBH
Product Specification
3
3
2
2
1
1
34
0
0