Maxim Integrated DS4830A Optical Microcontroller - Manual (Page 140)

DS4830A User’s Guide
140
programming flexibility for any application. The associated registers and their module addresses are listed in Table
15-2. The user should not write to any reserved bits as this may cause undesired behavior.
Table 15-2: GPIO Registers
REGISTER FUNCTION PORT 0 PORT 1 PORT 2 PORT 6
POp Port Output Register M0[02h] M0[01h] M0[00h] M1[03h]
PIp Port Input Register M0[0Ah] M0[09h] M0[08h] M1[08h]
PDp Port Direction Register M0[12h] M0[11h] M0[10h] M1[11h]
EIFp Port External Interrupt Flag Register M0[05h] M0[04h] M0[03h] M1[06h]
EIEp
Port External Interrupt Enable
Register
M0[0Fh] M0[0Eh] M0[0Dh] M1[07h]
EIESp
Port External Interrupt Edge Select
Register
M0[15h] M0[14h] M0[13h] M1[10h]