SAK-TC1775-L40E BA Infineon Technologies, SAK-TC1775-L40E BA Datasheet - Page 62

• Manufacturer Part Number: SAK-TC1775-L40E BA
• Description: IC MCU 32BIT 40MHZ BGA-329
• Manufacturer: Infineon Technologies
• Series: TC17xxr

Specifications of SAK-TC1775-L40E BA

• Core Processor: TriCore
• Core Size: 32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SDLM, SSC, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 176
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: ROM
• Ram Size: 73K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 2.75 V
• Data Converters: A/D 32x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 329-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: SAKTC1775L40EBA; SP000012965

Preliminary
Clock Generation Unit
The Clock Generation Unit (CGU) in the TC1775, shown in
oscillator circuit and a Phase-Locked Loop (PLL). The PLL can convert a low-frequency
external clock signal to a high-speed internal clock for maximum performance. The PLL
also has fail-safe logic that detects degenerate external clock behavior such as abnormal
frequency deviations or a total loss of the external clock. It can execute emergency
actions if it looses its lock on the external clock.
In general, the CGU is controlled through the System Control Unit (SCU) module of the
TC1775.
Figure 18
Besides the two XTAL pins for the oscillator, input pins CLKSEL[2:0] and BYPASS are
used for configuration of the clock generation unit. These inputs are checked by the SCU
which generates the appropriate control signals and latches the state of these signals
into register PLL_CLC.
Data Sheet
XTAL2
XTAL1
CLKSEL[2:0]
BYPASS
Clock Generation Unit
CGU
Oscillator
Circuit
Clock Generation Unit Block Diagram
OSC_OK
System Control Unit
SCU
f
OSC
&
Detector
PLL
Locked
Lock
PLL
Detect.
Phase
Deep
Sleep
NDIV[2:0]
Divider
VCO
N
58
f
VCO
VCO_
BYPASS
1
0
MUX
Register PLL_CLC
KDIV[2:0] PLL_
Divider
Figure
K
BYPASS
18, consists of an
1
0
MUX
V1.2, 2002-05
System_
CLK
f
MCA04713
SYS
TC1775