223
Block Diagram of Channels 0 and 1: ITU channels 0 and 1 have the same function. Figure 10.2
shows a block diagram of channels 0 and 1.
TCLKA–
TCLKD
φ
,
φ
/2,
φ
/4,
φ
/8
Clock selection
Comparator
Control logic
TCNTn
GRAn
GRBn
TCRn
TIORn
TIERn
TSRn
Module data bus
TIOCAn
TIOCBn
IMIAn
IMIBn
OVIn
TCNTn: Timer counter n (16 bits)
GRAn, GRBn: General registers An, Bn (input capture/output compare dual use) (16 bits
×
2)
TCRn: Timer control register n (8 bits)
TIORn: Timer I/O control register n (8 bits)
TIERn: Timer interrupt enable register n (8 bits)
TSRn: Timer status register n (8 bits)
(n = 0 or 1)
Figure 10.2 Block Diagram of Channels 0 and 1 (One Channel Shown)
Содержание HD6417032
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Страница 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
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