RFPIC12C509AG Datasheet, PDF (13/104 Pages) Microchip Technology – 18/20-Pin 8-Bit CMOS Microcontroller with UHF ASK/FSK Transmitter

rfPIC12C509AG/509AF
FIGURE 3-1:
rfPIC12C509AG/509AF BLOCK DIAGRAM
EPROM
1024 x 12
Program
Memory
Program
Bus
12
Instruction reg
12
Data Bus
8
Program Counter
STACK1
STACK2
RAM
41 x 8
File
Registers
RAM Addr 9
Addr MUX
Direct Addr ⁵
Indirect
5-7 Addr
FSR reg
STATUS reg
8
OSC1/CLKIN
OSC2
Instruction
Decode &
Control
Timing
Generation
Device Reset
Timer
Power-on
Reset
Watchdog
Timer
3
MUX
ALU
8
W reg
Internal RC
OSC
MCLR
VDD, VSS
Timer0
GPIO
GP0
GP1
GP2/T0CKI
GP3/MCLR/VPP
GP4/OSC2
GP5/OSC1/CLKIN
VDDRF
VSSRF
RFENIN
CLKOUT
PS/DATAASK
FSK Switch
rfPIC12C509AF Only
UHF ASK/FSK
Transmitter
(see Figure 7-1)
DATAFSK
FSKOUT
XTAL
LF
ANT2
ANT1
© 2001 Microchip Technology Inc.
Preliminary
DS70031A-page 11