Rainbow-electronics AT89C5132 Uživatelský manuál stáhnout pdf (Strana 31)

AT8xC5132

4173A–8051–08/02

Special Function

Registers

The Special Function Registers (SFRs) of the AT8xC5132 derivatives fall into the cate-

gories detailed in Table 30 to Table 45. The relative addresses of these SFRs are

provided together with their reset values in Table 46. In this table, the bit-addressable

registers are identified by Note 1.

Table 30. C51 Core SFRs

MnemonicAddName 76543210

ACC E0h Accumulator ––––––––

B F0h B Register ––––––––

PSW D0h Program Status Word CY AC F0 RS1 RS0 OV F1 P

SP 81h Stack Pointer ––––––––

DPL 82h Data Pointer Low byte ––––––––

DPH 83h Data Pointer High byte ––––––––

Table 31. System Management SFRs

MnemonicAddName 76543210

PCON 87h Power Control SMOD1 SMOD0 ––GF1 GF0 PD IDL

AUXR 8Eh Auxiliary Register 0 – EXT16 M0 DPHDIS XRS1 XRS0

EXTRAM

AUXR1 A2h Auxiliary Register 1 ––

ENBOOT

– GF3 0 – DPS

NVERS FBh Version Number NV7 NV6 NV5 NV4 NV3 NV2 NV1 NV0

Table 32. PLL and System Clock SFRs

MnemonicAddName 76543210

CKCON 8Fh Clock Control –––––––X2

PLLCON E9h PLL Control R1 R0 ––PLLRES v PLLEN PLOCK

PLLNDIV EEh PLL N Divider – N6 N5 N4 N3 N2 N1 N0

PLLRDIV EFh PLL R Divider R9 R8 R7 R6 R5 R4 R3 R2

Table 33. Interrupt SFRs

MnemonicAddName 76543210

IEN0 A8h Interrupt Enable Control 0 EA EAUD – ES ET1 EX1 ET0 EX0

IEN1 B1h Interrupt Enable Control 1 – EUSB – EKB EADC ESPI EI2C EMMC

IPH0 B7h Interrupt Priority Control High 0 – IPHAUD – IPHS IPHT1 IPHX1 IPHT0 IPHX0

IPL0 B8h Interrupt Priority Control Low 0 – IPLAUD – IPLS IPLT1 IPLX1 IPLT0 IPLX0

IPH1 B3h Interrupt Priority Control High 1 – IPHUSB – IPHKB IPHADC IPHSPI IPHI2C IPHMMC

IPL1 B2h Interrupt Priority Control Low 1 – IPLUSB – IPLKB IPLADC IPLSPI IPLI2C IPLMMC

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 161 162

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Rainbow-electronics AT89C5132 Uživatelský manuál Strana 31