TMP86C993XB Toshiba, TMP86C993XB Datasheet - Page 23

• Manufacturer Part Number: TMP86C993XB
• Description: EMULATION CHIP FOR TMP86F SSOP
• Manufacturer: Toshiba

Specifications of TMP86C993XB

• Accessory Type: Adapter
• For Use With/related Products: TMP86F SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.2.2
(a) Crystal/Ceramic
2.2.2.1
XIN
resonator
from the basic clock (fc or fs). The timing generator provides the following functions.
Timing Generator
The timing generator generates the various system clocks supplied to the CPU core and peripheral hardware
machine cycle counters.
TBTCR<DV7CK>, that is shown in Figure 2-4. As reset and STOP mode started/canceled, the prescaler and
the divider are cleared to “0”.
Note:The function to monitor the basic clock directly at external is not provided for hardware, however, with
1. Generation of main system clock
2. Generation of divider output (DVO) pulses
3. Generation of source clocks for time base timer
4. Generation of source clocks for watchdog timer
5. Generation of internal source clocks for timer/counters
6. Generation of warm-up clocks for releasing STOP mode
The timing generator consists of a 2-stage prescaler, a 21-stage divider, a main system clock generator, and
An input clock to the 7th stage of the divider depends on the operating mode, SYSCR2<SYSCK> and
Configuration of timing generator
disabling all interrupts and watchdog timers, the oscillation frequency can be adjusted by monitoring the
pulse which the fixed frequency is outputted to the port by the program.
The system to require the adjustment of the oscillation frequency should create the program for the
adjustment in advance.
High-frequency clock
XOUT
Figure 2-3 Examples of Resonator Connection
XIN
(b) External oscillator
XOUT
(Open)
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XTIN
(c) Crystal
XTOUT
Low-frequency clock
XTIN
(d) External oscillator
TMP86FH92DMG
XTOUT
(Open)