ZLP128ICE01ZEM Zilog, ZLP128ICE01ZEM Datasheet - Page 21

• Manufacturer Part Number: ZLP128ICE01ZEM
• Description: EMULATOR CRIMZON Z8 ZLP12840
• Manufacturer: Zilog

Specifications of ZLP128ICE01ZEM

• Interface Type: RS-232, Ethernet, USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3829

PS024410-0108
P30 (P
P31 (AN1)
P31 can be used as an interrupt, analog comparator input, infrared learning amplifier
input, normal digital input pin and as a Stop Mode Recovery source. When bit 2 of the
Port 3 Mode Register (P3M) is set, P31 is used as the infrared learning amplifier, IR1. The
reference source for IR1 is GND. The infrared learning amplifier is disabled during STOP
mode. When bit 1 of P3M is set, the part is in ANALOG mode and the analog comparator,
COMP1 is used. The reference voltage for COMP1 is P30 (P
mode, P30 cannot be read as a digital input when the CPU reads bit 0 of the Port 3
REF1
)
From Stop-Mode
Recovery Source of SMR
+
–
P31
Comp1
I
REF
ZLP12840
OTP MCU
Digital
Figure 6. Port 3 Configuration
+
+
–
–
IR1
Learning Amplifier
Comp2
P R E L I M I N A R Y
D1
P3M Register, 0F7h
P30
P31
P32
P33
P34
P35
P36
P37
D2
D1
Port 3 (I/O)
1 = Analog; IR Amp On
0 = Digital; IR Amp Off
IRQ2, P31 Data Latch
IRQ0, P32 Data Latch
IRQ1, P33 Data Latch
REF1
Product Specification
). When in ANALOG
I/O Port Pin Functions
15