AT89LP216-20PI ATMEL [ATMEL Corporation], AT89LP216-20PI Datasheet - Page 53
AT89LP216-20PI
Manufacturer Part Number
AT89LP216-20PI
Description
Microcontroller with 2K Bytes Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89LP216-20PI.pdf
(90 pages)
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3621A–MICRO–6/06
Figure 18-2. SPI Shift Register Diagram
Figure 18-3. SPI Block Diagram
Transmit
Serial In
Byte
÷4÷8÷32÷64
SPI Status Register
Oscillator
Select
Divider
SPI Control
8
SPI Clock (Mater)
MUX
8
2:1
SPI Interrupt
Request
8
Parallel Master
Serial Master
(Write Buffer)
D
CLK
D
CLK
LATCH
LATCH
MSTR
SPE
8
MSB
Data Bus
Internal
Q
Q
8
Read Data Buffer
Write Data Buffer
7
8-bit Shift Register
8
AT89LP216 [Preliminary]
SPI Control Register
Clock
Logic
MUX
Clock
LSB
2:1
8
Parallel Slave
Serial Slave
(Read Buffer)
D
CLK
D
CLK
LATCH
LATCH
S
M
M
S
S
M
Q
Q
8
Serial Out
Receive
Byte
MISO
MOSI
P1.6
P1.5
SCK
P1.4
1.7
SS
53
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