SI1010-A-GM Silicon Laboratories Inc, SI1010-A-GM Datasheet - Page 134
![IC TXRX MCU + EZRADIOPRO](/photos/14/21/142131/42-qfn-series_sml.jpg)
SI1010-A-GM
Manufacturer Part Number
SI1010-A-GM
Description
IC TXRX MCU + EZRADIOPRO
Manufacturer
Silicon Laboratories Inc
Specifications of SI1010-A-GM
Package / Case
42-QFN
Frequency
240MHz ~ 960MHz
Data Rate - Maximum
256kbps
Modulation Or Protocol
FSK, GFSK, OOK
Applications
General Purpose
Power - Output
20dBm
Sensitivity
-121dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
18.5mA
Current - Transmitting
85mA
Data Interface
PCB, Surface Mount
Memory Size
16kB Flash, 768B RAM
Antenna Connector
PCB, Surface Mount
Number Of Receivers
1
Number Of Transmitters
1
Wireless Frequency
240 MHz to 960 MHz
Interface Type
UART, SMBus, SPI, PCA
Output Power
20 dBm
Operating Supply Voltage
0.9 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Supply Current
4 mA
Minimum Operating Temperature
- 40 C
Modulation
FSK, GFSK, OOK
Protocol Supported
C2, SMBus
Core
8051
Program Memory Type
Flash
Program Memory Size
16 KB
Data Ram Size
768 B
Supply Current (max)
4 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1874-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI1010-A-GM
Manufacturer:
Silicon Laboratories Inc
Quantity:
135
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Si1010/1/2/3/4/5
12. Interrupt Handler
The Si1010/1/2/3/4/5 microcontroller family includes an extended interrupt system supporting multiple
interrupt sources and two priority levels. The allocation of interrupt sources between on-chip peripherals
and external input pins varies according to the specific version of the device. Refer to Table 12.1, “Interrupt
Summary,” on page 136 for a detailed listing of all interrupt sources supported by the device. Refer to the
data sheet section associated with a particular on-chip peripheral for information regarding valid interrupt
conditions for the peripheral and the behavior of its interrupt-pending flag(s).
Each interrupt source has one or more associated interrupt-pending flag(s) located in an SFR or an indi-
rect register. When a peripheral or external source meets a valid interrupt condition, the associated inter-
rupt-pending flag is set to logic 1. If both global interrupts and the specific interrupt source is enabled, a
CPU interrupt request is generated when the interrupt-pending flag is set.
As soon as execution of the current instruction is complete, the CPU generates an LCALL to a predeter-
mined address to begin execution of an interrupt service routine (ISR). Each ISR must end with an RETI
instruction, which returns program execution to the next instruction that would have been executed if the
interrupt request had not occurred. If interrupts are not enabled, the interrupt-pending flag is ignored by the
hardware and program execution continues as normal. (The interrupt-pending flag is set to logic 1 regard-
less of the interrupt's enable/disable state.)
Some interrupt-pending flags are automatically cleared by hardware when the CPU vectors to the ISR.
However, most are not cleared by the hardware and must be cleared by software before returning from the
ISR. If an interrupt-pending flag remains set after the CPU completes the return-from-interrupt (RETI)
instruction, a new interrupt request will be generated immediately and the CPU will re-enter the ISR after
the completion of the next instruction.
12.1. Enabling Interrupt Sources
Each interrupt source can be individually enabled or disabled through the use of an associated interrupt
enable bit in the Interrupt Enable and Extended Interrupt Enable SFRs. However, interrupts must first be
globally enabled by setting the EA bit (IE.7) to logic 1 before the individual interrupt enables are recog-
nized. Setting the EA bit to logic 0 disables all interrupt sources regardless of the individual interrupt-
enable settings. Note that interrupts which occur when the EA bit is set to logic 0 will be held in a pending
state, and will not be serviced until the EA bit is set back to logic 1.
12.2. MCU Interrupt Sources and Vectors
The CPU services interrupts by generating an LCALL to a predetermined address (the interrupt vector
address) to begin execution of an interrupt service routine (ISR). The interrupt vector addresses associ-
ated with each interrupt source are listed in Table 12.1 on page 136. Software should ensure that the inter-
rupt vector for each enabled interrupt source contains a valid interrupt service routine.
Software can simulate an interrupt by setting any interrupt-pending flag to logic 1. If interrupts are enabled
for the flag, an interrupt request will be generated and the CPU will vector to the ISR address associated
with the interrupt-pending flag.
134
Rev. 1.0
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