HT46RB50 Holtek Semiconductor, HT46RB50 Datasheet - Page 13

• Manufacturer Part Number: HT46RB50
• Description: A/D Type USB 8-Bit MCU
• Manufacturer: Holtek Semiconductor

Note:
The registers states are summarized in the following table.
Rev. 1.10
TMR0
TMR0C
TMR1H
TMR1L
TMR1C
Program
Counter
MP0
MP1
ACC
TBLP
TBLH
STATUS
INTC0
INTC1
PA
Register
nected to the RES pin as short as possible, to
avoid noise interference.
* Make the length of the wiring, which is con-
(Power On)
-xxxx xxxx
1111 1111
00-0 1000
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
-000 -000
--00 xxxx
xxxx xxxx
00-0 1---
Reset Configuration
Reset
000H
Reset Circuit
Operation)
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
1111 1111
00-0 1000
-uuu uuuu
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
--1u uuuu
-000 -000
Time-out
00-0 1---
(Normal
WDT
000H
RES Reset
Operation)
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
1111 1111
00-0 1000
-uuu uuuu
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
--uu uuuu
-000 -000
(Normal
00-0 1---
000H
13
RES Reset
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
1111 1111
00-0 1000
-uuu uuuu
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
--01 uuuu
-000 -000
00-0 1---
(HALT)
Awaking from the HALT state or system power up, an
SST delay is added. An extra SST delay is added during
power up period, and any wake-up from HALT may en-
able only the SST delay. The functional unit chip reset
status are shown below.
000H
Program Counter
Interrupt
Prescaler, Divider
WDT
Timer/event Counter
Input/output Ports
Stack Pointer
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uu-u uuuu
-uuu uuuu
Time-out
--11 uuuu
-uuu uuuu
-uuu -uuu
uu-u u---
(HALT)*
000H
WDT
Reset Timing Chart
000H
Disable
Cleared
Clear. After master reset,
WDT begins counting
Off
Input mode
Points to the top of the stack
USB Reset
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
1111 1111
00-0 1000
-uuu uuuu
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
--uu uuuu
-000 -000
(Normal)
00-0 1---
000H
September 7, 2006
HT46RB50
USB Reset
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
1111 1111
00-0 1000
-uuu uuuu
-000 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
--01 uuuu
-000 -000
00-0 1---
(HALT)
000H