AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 82

• Manufacturer Part Number: AT89C51ID2-SMSIM
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 31. Block Diagram
82
AT89C51ID2
PI2.1
PI2.0
SDA
SCL
Input
Filter
Output
Stage
Input
Filter
Output
Stage
Timer 1
overflow
Status
Bits
SSADR
SSCON
SSDAT
SSCS
Arbitration &
Sink Logic
Serial clock
generator
Address Register
Status Register
Comparator
Control Register
Shift Register
Status
Decoder
Timing &
Control
logic
8
8
8
7
ACK
F
CLK PERIPH
Interrupt
/4
4289A–8051–09/03