TMP86C909XB Toshiba, TMP86C909XB Datasheet - Page 41
TMP86C909XB
Manufacturer Part Number
TMP86C909XB
Description
EMULATION CHIP FOR TMP86F SDIP
Manufacturer
Toshiba
Datasheet
1.TMP86C909XB.pdf
(201 pages)
Specifications of TMP86C909XB
Accessory Type
Adapter
For Use With/related Products
TMP86F SDIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2.3 Reset Circuit
Instruction
execution
Internal reset
2.3.2 Address trap reset
2.3.3 Watchdog timer reset
2.3.4 System clock reset
Note 1: Address “a” is on-chip RAM (WDTCR1<ATAS> = “1”) space, DBR or SFR area.
Note 2: During reset release, reset vector “r” is read out, and an instruction at address “r” is fetched and decoded.
from the on-chip RAM (when WDTCR1<ATAS> is set to “1”), DBR or SFR area, address trap reset will be
generated. The reset time is maximum 24/fc[s] (1.5µs at 16.0 MHz).
CPU. (The oscillation is continued without stopping.)
If the CPU should start looping for some cause such as noise and an attempt be made to fetch an instruction
Note:The operating mode under address trapped is alternative of reset or interrupt. The address trap area is alter-
Refer to Section “Watchdog Timer”.
If the condition as follows is detected, the system clock reset occurs automatically to prevent dead lock of the
The reset time is maximum 24/fc (1.5 µs at 16.0 MHz).
- In case of clearing SYSCR2<XEN> and SYSCR2<XTEN> simultaneously to “0”.
- In case of clearing SYSCR2<XEN> to “0”, when the SYSCR2<SYSCK> is “0”.
- In case of clearing SYSCR2<XTEN> to “0”, when the SYSCR2<SYSCK> is “1”.
native.
JP a
Address trap is occurred
Figure 2-16 Address Trap Reset
maximum 24/fc [s]
Page 30
4/fc to 12/fc [s]
Reset release
16/fc [s]
Instruction at address r
TMP86F409NG
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