MB87P2020 Datasheet, PDF (278/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

MB87J2120, MB87P2020-A Hardware Manual
2.5.4 MCU User Logic Bus Interface
ULB_CLK
ULB_CS
tHCSR *
tHCSF
tSCSF
tHCSF
ULB_RDX
t HWRX
tSWRX
tHWRX
tSWRX tHWRX
ULB_WRX[n]
t SA
tHA
ULB_A _{00110011001100110011001100110011}
0011001100110011001100110011
001100110011
tSDI
tHDI
ULB_D _{001100110011001100110011001100110011001100110011 DI}
00110011001100110011001100110011001100110011
001100110011
Figure 2-3: ULB write access (followed by another write)
ULB_CLK
ULB_CS
ULB_RDX
tHCSR *
tHCSF
tSCSF
tHRDX
tSRDX
tHCSR *
tHCSF
tSCSF
01010101^tAC01^C 01010101010101^tEX01^R 010101 ^{tHRDX tSRDX}
ULB_WRX[n]
tSA
ULB_A _{001100110011001100110011001100110011001100110011001100110011}
tODRDY
t ODRDY
ULB_RDY
ULB_D
01010101010101010101010101_000111001101_t000111^t_OO01_HH000111DRRD01_DY⁰⁰⁰¹¹¹_000111X 01⁰⁰⁰¹¹¹₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01₀₀₀₁₁₁01^01t₀₀₀₁₁₁^tOO01^D01H₀₀₀₁₁₁^DRD_00001111^{Y000111000111}
Figure 2-4: ULB read access
t HA
0011001100110011001100110011
first RDX or CS
0011^{rising edge}
DO
01^{tt OOHD}01^DD₀₀₀₁₁₁^RR_00001111^DDXX_{00011101000001111101010101}
Table 2-7: ULB Input Signal Timing Specification
Parameter
Chip Select (ULB_CS) Setup Time (falling)
Chip Select (ULB_CS) Hold Time (falling)
Chip Select (ULB_CS) Hold Time (rising)^a
Symbol
t_SCSF
t_HCSF
t_HCSR*
Min [ps]
Jas
Lav
1450 410
-130 2380
1800 3120
Max [ps]
Jas
Lav
-
-
-
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