HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 204
HD64F36077GHV
Manufacturer Part Number
HD64F36077GHV
Description
16BIT MCU FLASH 56K, SMD, LQFP64
Manufacturer
Renesas Electronics America
Datasheet
1.HD64F36077GHV.pdf
(524 pages)
Specifications of HD64F36077GHV
No. Of I/o's
47
Ram Memory Size
4KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Supply Voltage Range
4.5V
Core Size
16bit
Program Memory Size
56KB
Oscillator Type
External Only
Controller Family/series
H8/300H
Peripherals
ADC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F36077GHV
Manufacturer:
RENESAS
Quantity:
340
Part Number:
HD64F36077GHV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 11 Timer B1
11.3.2
TCB1 is an 8-bit read-only up-counter, which is incremented by internal clock input. The clock
source for input to this counter is selected by bits TMB12 to TMB10 in TMB1. TCB1 values can
be read by the CPU at any time. When TCB1 overflows from H'FF to H'00 or to the value set in
TLB1, the IRRTB1 flag in IRR2 is set to 1. TCB1 is allocated to the same address as TLB1. TCB1
is initialized to H'00.
11.3.3
TLB1 is an 8-bit write-only register for setting the reload value of TCB1. When a reload value is
set in TLB1, the same value is loaded into TCB1 as well, and TCB1 starts counting up from that
value. When TCB1 overflows during operation in auto-reload mode, the TLB1 value is loaded
into TCB1. Accordingly, overflow periods can be set within the range of 1 to 256 input clocks.
TLB1 is allocated to the same address as TCB1. TLB1 is initialized to H'00.
11.4
11.4.1
When bit TMB17 in TMB1 is cleared to 0, timer B1 functions as an 8-bit interval timer. Upon
reset, TCB1 is cleared to H'00 and bit TMB17 is cleared to 0, so up-counting and interval timing
resume immediately. The operating clock of timer B1 is selected from seven internal clock signals
output by prescaler S, or an external clock input at pin TMB1. The selection is made by bits
TMB12 to TMB10 in TMB1.
After the count value in TMB1 reaches H'FF, the next clock signal input causes timer B1 to
overflow, setting flag IRRTB1 in IRR2 to 1. If IENTB1 in IENR2 is 1, an interrupt is requested to
the CPU.
At overflow, TCB1 returns to H'00 and starts counting up again. During interval timer operation
(TMB17 = 0), when a value is set in TLB1, the same value is set in TCB1.
Rev. 1.00 Sep. 16, 2005 Page 174 of 490
REJ09B0216-0100
Timer Counter B1 (TCB1)
Timer Load Register B1 (TLB1)
Operation
Interval Timer Operation
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