mc68hc916y3 Freescale Semiconductor, Inc, mc68hc916y3 Datasheet - Page 269

• Manufacturer Part Number: mc68hc916y3
• Description: Mc68hc16y3 16 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC16Y3/916Y3
USER’S MANUAL
Figure 12-2 shows a block diagram of the SPI.
Clock control logic allows a selection of clock polarity and a choice of two clocking pro-
tocols to accommodate most available synchronous serial peripheral devices. When
the SPI is configured as a master, software selects one of 254 different bit rates for the
serial clock.
MCU CLOCK
INTERNAL
MODULUS
COUNTER
SPI STATUS REGISTER
SELECT
SPI CONTROL
On the MC68HC16Y3/916Y3, the SPI is not available. Instead, the
QSPI from the QSM is used. Refer to SECTION 11 QUEUED SERI-
AL MODULE for more information.
SPI CLOCK (MASTER)
SPI INTERRUPT
REQUEST
MULTICHANNEL COMMUNICATION INTERFACE
Freescale Semiconductor, Inc.
For More Information On This Product,
MSTR
SPE
Figure 12-2 SPI Block Diagram
DATA BUS
INTERNAL
Go to: www.freescale.com
MSB
8/16-BIT SHIFT REGISTER
READ DATA BUFFER
CONTROL
LOGIC
SHIFT
NOTE
SPI CONTROL REGISTER
LSB
CLOCK
LOGIC
CLOCK
S
M
M
S
M
S
MCCI SPI BLOCK
MOTOROLA
PMCO
PMC2
MISO
PMC1
PMC3
MOSI
SCK
SS
12-5