XC56309AG100A Freescale Semiconductor, XC56309AG100A Datasheet - Page 194

• Manufacturer Part Number: XC56309AG100A
• Description: IC DSP 24BIT 100MHZ 144-TQFP
• Manufacturer: Freescale Semiconductor
• Series: DSP563xxr
• Type: Fixed Pointr

Specifications of XC56309AG100A

• Interface: Host Interface, SSI, SCI
• Clock Rate: 100MHz
• Non-volatile Memory: ROM (576 B)
• On-chip Ram: 24kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: -40°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Triple Timer Module
9.1.2 Individual Timer Block Diagram
Figure 9-2 shows the structure of an individual timer block. The DSP56309 treats each timer as a
memory-mapped peripheral with four registers occupying four 24-bit words in the X data
memory space. The three timers are identical in structure and function. Either standard polled or
interrupt programming techniques can be used to service the timers. A single, generic timer is
discussed in this chapter. Each timer includes the following:
The timer mode is controlled by the TC[3–0] bits which are TCSR[7–4]. For a listing of the timer
modes and descriptions of their operations, see Section 9.3, Operating Modes, on page 9-5.
9-2
24-bit counter
24-bit read/write Timer Control and Status Register (TCSR)
24-bit read-only Timer Count Register (TCR)
24-bit write-only Timer Load Register (TLR)
24-bit read/write Timer Compare Register (TCPR)
Logic for clock selection and interrupt/DMA trigger generation.
GDB
Timer Prescaler
Load Register
24
CLK/2
TPLR
24-bit Counter
Figure 9-1. Triple Timer Module Block Diagram
TIO0 TIO1 TIO2
Timer Prescaler
Count Register
24
DSP56309 User’s Manual, Rev. 1
TPCR
24
Timer 0
Timer 1
Timer 2
24
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